Showing posts with label Work Systems Design. Show all posts
Showing posts with label Work Systems Design. Show all posts

Wednesday, January 1, 2025

Work Systems - IISE Definition and Evolution of Work Systems Design in Industrial Engineering



ISO 6385:2016 Preview
Ergonomics principles in the design of work systems

Work systems involve combinations of workers and equipment, within a given space and environment, and the interactions between these components within a work organization.

ISO 6385:2016 establishes the fundamental principles of ergonomics as basic guidelines for the design of work systems and defines relevant basic terms. It describes an integrated approach to the design of work systems, where ergonomists will cooperate with others involved in the design, with attention to the human, the social and the technical requirements in a balanced manner during the design process.

Users of this International Standard will include executives, managers, workers (and their representatives, when appropriate) and professionals, such as ergonomists, project managers and designers who are involved in the design or redesign of work systems. Those who use this International Standard can find a general knowledge of ergonomics (human factors), engineering, design, quality and project management helpful.

The term "work system" in this International Standard is used to indicate a large variety of working situations, including permanent and flexible work places. The intention of this International Standard is to assist in the improvement, (re)design or change of work systems. Work systems involve combinations of workers and equipment, within a given space and environment, and the interactions between these components within a work organization. Work systems vary in complexity and characteristics, for example, the use of temporary work systems. Some examples of work systems in different areas are the following:

- production, e.g. machine operator and machine, worker and assembly line;

- transportation, e.g. driver and car or lorry, personnel in an airport;

- support, e.g. maintenance technician with work equipment;

- commercial, e.g. office worker with workstation, mobile worker with a tablet computer, cook in a restaurant kitchen;

- other areas like health care, teaching and training.

The observance of ergonomic principles applies to all phases throughout the life cycle of the work system from conception through development, realization and implementation, utilization, maintenance and support to decommissioning.

The systems approach in this International Standard gives guidance to the users of this International Standard in existing and new situations.

The definitions and ergonomic principles specified in this International Standard apply to the design of optimal working conditions with regard to human well-being, safety and health, including the development of existing skills and the acquisition of new ones, while taking into account technological and economic effectiveness and efficiency.

The principles in this International Standard are applicable to many other human activities, e.g. in the design of products for domestic and leisure activities. A more general description of the principles in this International Standard can be found in ISO 26800.

https://www.iso.org/standard/63785.html


WORK SYSTEMS DIVISION - IISE


IISE Work Systems Division members have an interest in the art, science, and practice of designing, implementing, analyzing and improving human-machine systems that work together to produce goods and provide services.

Vision (what we want to become)
Work Systems Division is to be the leading source for promoting advancements in the science, mathematics, and engineering principles that define work systems.
The Work Systems Division inspires those with an interest in designing, implementing, analyzing, and improving Work Systems in all environments (terrestrial, subterranean, underwater, atmospheric, outer space, cyberspace, etc.).
Mission (what we are doing today)
The Work Systems Division primary focus is on defining/establishing a work systems framework and scientific approach to design, standardization, measurement, analysis and optimization.

Definition


"A work system is a system in which human participants and/or machines perform work using information, technology, and other resources to produce products and/or services for internal or external customers. Typical business organizations contain work systems that procure materials from suppliers, produce and deliver products or services to customers, find customers, create financial reports, hire employees, coordinate work across departments, and perform many other functions.

The work system concept is a common denominator for many types of systems that operate within or across organizations."

http://www.iise.org/details.aspx?id=908


Holitistic Work System Design and Management - Oulu Phd thesis
http://jultika.oulu.fi/files/isbn9789526202198.pdf



1992 Book's explanation on Work System Design in the context of Information Systems - Very interesting

Draft Work System Design Handbook: A Guide for Integrating Technology with Human and Organizational Factors
Department of the Treasury, Internal Revenue Service, 1992 - Government publications
https://books.google.co.in/books?id=77U2IRVRkZkC

Occupational Ergonomics: Design and Management of Work Systems
Waldemar Karwowski, William S. Marras
CRC Press, 26-Mar-2003 - Technology & Engineering - 624 pages
Occupational Ergonomics: Design and Management of Work Systems comprises chapters carefully selected from CRC's bestselling Occupational Ergonomics Handbook, logically organized for optimum convenience and thoughtfully priced to fit every budget. This book presents 34 chapters addressing selected issues in the area of occupational macroergonomics,
https://books.google.co.in/books?id=CAXNBQAAQBAJ



The Work System Method: Connecting People, Processes, and IT for Business Results
Steven Alter
Work System Method, 2006 - Business & Economics - 280 pages
The Work System Method is an organized approach that every organization can use for: ... Recognizing that systems involve much more than IT ... Describing and understanding systems from a business viewpoint ... Analyzing and improving systems ... Improving communication between business and IT professionals ... Increasing the likelihood of successful implementation ... Understanding the role and limitations of IT.

Industrial Engineering and Ergonomics: Visions, Concepts, Methods and Tools Festschrift in Honor of Professor Holger Luczak

Christopher M. Schlick
Springer Science & Business Media, 03-Oct-2009 - Technology & Engineering - 710 pages

The 60th birthday of Prof. Luczak is the reason for this book. He will be honoured for his research work during the "GfA-confernece" in March 2009. This book is the correspondig "Festschrift" for him.
https://books.google.co.in/books?id=IV0Vw4nNAAoC


2009 - Interesting content on work systems design in Information Systems Context..

Strategic Information Systems: Concepts, Methodologies, Tools, and Applications: Concepts, Methodologies, Tools, and Applications
Hunter, M. Gordon
IGI Global, 31-Aug-2009 - Education - 2750 pages
Strategic use of technological innovations in information systems has rapidly evolved transforming institutions, organizations, and individuals across the globe.

Strategic Information Systems: Concepts, Methodologies, Tools, and Applications provides a compendium of comprehensive advanced research articles written by an international collaboration of experts involved with the strategic use of information systems. Containing premier technologies and utilization techniques, this estimable repository of authoritative contributions presents academicians, practitioners, and researchers with an enriched compilation of cutting-edge knowledge.
https://books.google.co.in/books?id=tGZMdOKFlWsC


Age-Differentiated Work Systems


Christopher Marc Schlick, Ekkehart Frieling, Jürgen Wegge
Springer Science & Business Media, 14-Mar-2013 - Technology & Engineering - 448 pages


The disproportionate aging of the population of working age in many nations around the world is a unique occurrence in the history of humankind. In the light of demographic change, it is becoming increasingly important to develop and use the potential of older employees.

This edited volume Age-differentiated Work Systems provides a final report on a six-year priority program funded by the German Research Foundation (DFG) and presents selected research findings of 17 interdisciplinary project teams. The idea is that it will serve both as a reference book and overview of the current state of research in ergonomics, occupational psychology and related disciplines. It provides new models, methods, and procedures for analyzing and designing age-differentiated work systems with the aim of supporting subject matter experts from different areas in their decisions on labor and employment policies. Therefore over 40 laboratory experiments involving 2,000 participants and 50 field studies involving over 25,000 employees were conducted.

Further objectives of the edited volume were to provide a pluridisciplinary compilation of the extensive information acquired over the six-year program period, to illustrate the range of the research field, and to convey an integrated understanding of age-differentiated work systems to readers.
https://books.google.co.in/books?id=bWpHAAAAQBAJ



Production Ergonomics: Designing Work Systems to Support Optimal Human Performance


Cecilia Berlin, Caroline Adams
Ubiquity Press, 28-Jun-2017 - Technology & Engineering - 296 pages

Production ergonomics – the science and practice of designing industrial workplaces to optimize human well-being and system performance – is a complex challenge for a designer. Humans are a valuable and flexible resource in any system of creation, and as long as they stay healthy, alert and motivated, they perform well and also become more competent over time, which increases their value as a resource. However, if a system designer is not mindful or aware of the many threats to health and system performance that may emerge, the end result may include inefficiency, productivity losses, low working morale, injuries and sick-leave.

To help budding system designers and production engineers tackle these design challenges holistically, this book offers a multi-faceted orientation in the prerequisites for healthy and effective human work. We will cover physical, cognitive and organizational aspects of ergonomics, and provide both the individual human perspective and that of groups and populations, ending up with a look at global challenges that require workplaces to become more socially and economically sustainable. This book is written to give you a warm welcome to the subject, and to provide a solid foundation for improving industrial workplaces to attract and retain healthy and productive staff in the long run.





Updated on 7 Nov 2020
First published on 16 October 2020


Tuesday, December 3, 2024

Design of Work Systems, Machine Methods, Operator Methods, and Work Measurement - Ralph Barnes

 Work Systems Design: Does it include design of machine work? Or is its focus only human work?


Work Systems - Groover

As a field of professional practice, work systems include:
Work methods - analysis and design of tasks and jobs involving human work activity.
Work measurement – analysis of a task to determine the time that should be allowed to perform the task.


Work System: Definition

"A work system is a system in which human participants and/or machines perform work using information, technology, and other resources to produce products and/or services for internal or external customers." (IISE Work Systems Division)

The above definition indicates that an engineering work system, can be totally manual, or mechanized (machines operated by men) or totally automatic.

Work system is designed, resources are procured and operated with the objective of producing products or services. The design of work system starts after a product or services is determined to be produced.

As part of the work system design, the machines, work holding devices, and tools have to be designed or selected from those available  in the market. The machine method or process plans have to be prepared. Work holding and tooling decisions have to be made based on the process plans. Where required outsourcing or buy decisions for certain parts that could be made inside also have to be made. The skills of operators required have to be determined. Work station design for each machine to facilitate operator's work has to be designed. Operator method for each work station has to be developed. Based on the flow of work in the processes and work station layout for each machine, plant layout has to be designed. Work measurement has to be used to prescribe times for machine elements and manual elements.

Professor Ralph Barnes, in his book Motion and Time Study, seventh edition, described the process of work system design.

Chapter 5 titled "Work Methods Design - The Broad View" deals with the work system design.

Summary of the approach

In early days of producing parts of engineering discipline, craftsmen processed materials into usable products using simple hand tools. Machines were invented gradually and factory system evolved to produce large quantities using machines operated by trained machinists. F.W. Taylor, advocated that in factory systems, managers have an important role to develop science of work related to each element used in factory production using modern methods of scientific investigation. Invention of better and more productive machines, cutting tools, jigs & fixtures aided in increasing the productivity of the factory worker resulted in higher incomes to employees of the factory compared craft-based production. Barnes commented at that time that the popular current processes of production utilize machines and workers. Barnes also recognized in his book, the existence of automatic machines, where manual involvement is minimal in the processing on the machine.

Work system design is a part of putting a new product or service into production. The product design to production task is done in three steps.


1. Planning

2. Pre-production

3. Production


1. Planning

Steps in planning

1. Design of the product: The output of the product design process is the set of drawings showing the material, shape, size, weight and tolerances of each part of the product.

2. The design of the process (process planning - machine method): The operations to be done to produce each part and do subassemblies and final assembly have to be determined. In the case of manufacturing of products there are primary processes of  casting and processes for producing general materials like bars and sheets. The subsequent secondary operations like machining, forging and sheet metal operations produce the actual part as per design.

3. The selection or design of equipment: Based on the process plan proposed the selection of machines has to be done  from the market availability or special purpose equipment  has to be designed. 

4. Design of tooling: Apart from the main machine selection, tools like work holding devices, cutting tools, tool holders, dies and inspection gauges are to be designed.

5. Decisions regarding supply of various utilities and facilities for supplying them have to be planned.

6. The operator method (work method) is to designed now by determining the role of the operator in running the machine. The work place layout around the machine has to be determined at this stage so that the location of the incoming and outgoing material, positioning of the tools etc. are designed to facilitate operator motions.

Operator method (work method): How the operator has handle the material, tools and machine controls.

7. Selection and design of material handling equipment.

8. The material that results from the process plan and the required quantity of production has to be combined with work station layouts the create the plant layout to minimize material handling.

Location of equipment, tooling, stock supply, utilities (electricity, gas, water), material handling equipment. Work space for operator motions and material movement.

9.The determination of the time required to do each operation has to be established.

Establishment of times for mechanical elements.

Operator activity

Cost estimates

Overall labor control for time.

We can observe iterative nature of the above activities. There is a need to revise earlier steps based on the issues uncovered at later steps. Sometimes decisions are taken for two steps together.

Pre-production

The information generated in planning phase has to be converted into organization of resources. Machines & tools, equipment are to be purchased and installed. Operators are to be selected and trained as per the process plans. Machines are put on trails. The planned operator methods are evaluated for effectiveness and efficiency. The actual times is checked against estimates or predetermined times. This is a period, that establishes the effectiveness and capacity of the process,  equipment and operators.


Production

It is the operations phase. The project of creating production system or work system is completed and it is handed over to the operations team of managers, engineers, supervisors and operators. The regular flow of job orders based on customer orders or sales is established. Material purchases and supply take place and the machine-man-material system produces the products and services for which the system is designed.

During operations, there is necessity for preventing the methods from deteriorating from the planned methods. The current methods are to be evaluated against new developments in engineering, technology, new models of machines and tools for improvement opportunities. The potential for creative modifications of methods has to be identified. All operators are to be involved in method improvement to contribute their knowledge, thinking and experience. This is the prime job of industrial engineering. Continuous improvement of engineering over the product and process life cycles.

The phase of planning can be termed industrial system engineering and the improvement activity during operations is termed industrial engineering.


Work Systems Design - Related articles


Basic Steps in Work Systems Design - Prof. Gerald Nadler - 1963

Principles of Work System Design

Work Systems - Definition and Evolution of Work Systems Design in Industrial Engineering



Ud. 3.12.2024, 6.4.2022

 Pub: 7.11.2020


 








 

Friday, November 8, 2024

Work - Work System - Productivity - Human Comfort, Safety & Health

Work System - Productivity - Human Comfort, Safety & Health

Content of Slides

Historical Figures Related to Work

Industrial Revolution (1770’s)

James Watt
steam engine

Henry Maudslay
screw-cutting lathe
(Factories)
Machines started to replace workers
Produce more quickly and accurately
Specialization of labor
Use of large numbers of unskilled labors who works long hours for low pay (including women & children)
Interchangeable parts manufacture

Eli Whitney ( )
produces muskets for the US government
Standard parts
Special tools, fixtures etc.
Unique products replaces custom-fabricate products
Mass production (assembly line)

Henry Ford ( )
Model T for less than $500 in 1916

Scientific management (late 1800s)

Frederick W. Taylor ( )

Father of scientific management
Elementary Rate Fixing Department (Later became industrial engineering department)
Time study
Differential piece rate system (Incentive system - productivity reward)

Frank ( ) & Lillian Gilbreth ( )

Father (mother) of motion study
All works are composed of basic motion elements (therbligs)
There is one best method to perform a certain task.
Cheaper by the Dozen
Motion study (finding the best method to perform a task)
Time study to establish work standards for a job
Use of standards in industry
Labor incentives (bonus payments for higher outputs)
Use of data collection, record keeping, cost accounting
The objective is to improve the (labor) productivity

Serves an important economic function in the global world of commerce
Creates opportunities for social interactions and friendships
Provides the products and services that sustain and improve our standard of living

Work is an activity in which one exerts physical and mental effort to accomplish a given task or perform a duty
Task or duty has some useful objective
Worker applies skills and knowledge for successful completion
The activity has commercial value
The worker is compensated

The Pyramidal Structure of Work

Work consists of tasks
Tasks consist of work elements
Work elements consist of basic motion elements

Task Time required = 30 seconds to several minutes
An amount of work that is assigned to a worker or for which a worker is responsible
Repetitive task – as in mass production
Time required = 30 seconds to several minutes
Non-repetitive task – performed periodically, infrequently, or only once
Time required usually much longer than for repetitive task

Work Element
A series of work activities that are logically grouped together because they have a unified function in the task
Example: assembling a component to a base part using several nuts and bolts
Required time = six seconds or longer

Basic Motion Elements Examples:

Reaching for an object
Grasping the object
Moving the object
Walking
Eye movement
A work element consists of multiple basic motion elements
Less than a second

Importance of Time in Business and Industry
New product introduction
Product cost (reduced time means reduced labor costs)
Delivery time
Overnight delivery
Competitive bidding (proposals should be submitted by a specific date)
Production scheduling (being on time)

Importance of Time in Work
Time is the most frequently used measure of work (not Newton-meter)
How many minutes or hours are required to perform a given task?
Most workers are paid by the time they work
Hourly wage rate
Salary
Time=Money
Workers must arrive at work on time
Otherwise his/her absence may handicap the rest of the team
Labor and staffing requirements computed in units of time
Aggregate unit

Work System Defined (manual, machine system buraya)
As a physical entity, a work system is a system consisting of humans, information, and equipment designed to perform useful work
Results of the useful work contributes to the production of a product or delivery of a service
Examples:
Worker operating a machine tool in a factory
An assembly line consists of a dozen of workers at separate work stations along a moving conveyor
Parcel service agent driving a delivery truck to make customer deliveries
Designer working at a CAD workstation
A receptionist answering incoming phone calls

Work System Defined
As a field of professional practice, work systems include:
Work methods - analysis and design of tasks and jobs involving human work activity
Operations analysis & methods engineering
Work measurement – analysis of a task to determine the time that should be allowed to perform the task
Time study
Product costs
Worker performance
Worker requirements
Standard time
How long it takes to accomplish a given work
(Time=Money)

Work System Defined
As a field of professional practice, work systems include (cont.)
Work management – organizational and administrative functions that must be accomplished to achieve high productivity and effective supervision of workers
Organizing workers
Motivating workers
Evaluating jobs
Evaluating performances
Compensating workers (labor wages)

Comparisons: Industries and Workers
It is convenient to group occupations into the following four groups although there are more types of occupations
Production workers
Making products: Manufacturing, construction, agriculture

Logistics workers:
Moving materials, products, people
Transportation, distribution, material handling

Service workers
Providing service, applying existing information knowledge, communicate
Banking, retail, government, health care

Knowledge workers
Creating knowledge, solving problems, managing
Management, engineering, legal, consulting, education

Comparison of Work Characteristics
Physical activities
Cognitive activities

Productivity Individual production or service operations
The level of output of a given process relative to the level of input (output/input)
Process can refer to
Individual production or service operations
Can be used in the context of a national economy
Productivity is an important metric in work systems because Improving productivity means
saving scarce natural and human made resources
worker compensation can be increased without increasing the costs of products and services they produce
Products and services at lower prices for consumers which improves standard of living

Labor Productivity
The most common productivity measure is labor productivity, defined by the following ratio:
LPR =
where LPR = labor productivity ratio, WU = work units of output, LH = labor hours of input
The definition of output depends on the process under consideration
Steel industry : ton
Automobile industry: number of cars
Labor hour (aggregate unit)
Makes it possible to make comparisons across different industries

Labor Factor in Productivity
Labor itself does not contribute much to improving productivity
More important factors:
Capital - substitution of machines for human labor
Investing an automated production m/c to replace a manually operated m/c
Technology - fundamental change in the way some activity or function is accomplished
It is more than using a m/c in place of a human worker
A technologically more developed m/c replaces the previous one.

Examples of Technology Changes
Horse-drawn carts
Steam locomotive
Telephone operator
Manually operated milling machine
Railroad trains
Diesel locomotive
Dial phone
Numerically controlled (NC) milling machine

 Increasing Productivity
Important to recognize important gains in productivity are more likely to be made
By the introduction of capital and technology in a work process
Than by attempting to get more work in less time out of the workers
For example, in construction industry, mortar in mixers pumped into molds rather than workers mixing by shovels

Measuring Productivity
Not as easy as it seems because of the following problems:
Nonhomogeneous output units (Polo vs Golf)
Multiple input factors
Labor, capital, technology, materials, energy
Productivity comparisons are not easy for:
Price and cost changes due to economic forces and these effect the worth of the output
If prices decrease but costs increase productivity may be less meaningful

Labor Productivity Index
Measure that compares output/input ratio from one year to the next
LPI =
where LPI = labor productivity index, LPRt = labor productivity ratio for period t, and LPRb = labor productivity ratio for base period

Three Categories of Work Systems
Manual work system
Worker performs one or more tasks without the aid of powered tools (e.g. hammers, screwdrivers, shovels)
Worker-machine system
Human worker operates powered equipment (e.g. a machine tool)
Physical effort (less)
Machine power(more)
Automated work system
Process performed without the direct participation of a human worker


Some Definitions
Work unit – the object that is processed by the work system
Workpiece being machined (production work)
Material being moved (logistics work)
Customer in a store (service work)
Product being designed (knowledge work)
Unit operations – tasks and processes that are treated as being independent of other work activities
As opposed to sequential operations (sequence of operations required to manufacture a product or deliver a service)

Manual Work Systems
Most basic form of work in which human body is used to accomplish some physical task without an external source of power
With or without hand tools
Even if hand tools are used, the power to operate them is derived from the strength and stamina of a human worker
Hairbrush vs hair dryer
Of course other human faculties are also required, such as hand-eye coordination and mental effort

Pure Manual Work
Involves only the physical and mental capabilities of the human worker without machines or tools.
Material handler moving cartons in a warehouse
Workers loading furniture into a moving van without the use of dollies
Dealer at a casino table dealing cards
Office worker filing documents
Assembly worker snap-fitting two parts together

Manual Work with Hand Tools
Manual tasks are commonly augmented by use of hand tools.
Tool is a device for making changes to objects (formally work units) such as cutting, grinding,striking, sequeezing
Scissor, screwdriver, shovel
Tools can also be used for measurement and/or analysis purposes
Workholder to grasp or poisiton work units
Machinist filing a part
Assembly worker using screwdriver
Painter using paintbrush to paint door trim
QC inspector using micrometer to measure the diameter of a shaft
Material handling worker using a dolly to move furniture
Office worker writing with a pen

Repetitive vs. Nonrepetitive Tasks
Work cycle is relatively short (usually a few minutes or less)
High degree of similarity from one cycle to the next
Nonrepetitive Task
Work cycle takes a long time
Work cycles are not similar
In either case, the task can be divided into work elements that consist of logical groupings of motions


Ud. 8.11.2024
Pub. 24.9.2019

Wednesday, June 21, 2023

Principles of Work System Design

Principles of motion economy for human effort industrial engineering. 

Principles of machine economy for machine effort industrial engineering.


Machine Utilization Principle of Industrial Engineering - Prof. Ralph Barnes


1. Few people advocate using human labor to do work that can be done better and cheaper by machines.

2. It is suggested that the best manual method and the best combination of manual and machine method (mechanized) be developed and used as a basis for evaluating a proposed automated process.

(Restated as: Compare best manual method, mechanized method and automated method for each element of an operation and choose the best.)

3. If a large-volume fairly complex job is to be considered, a comparison would be of the estimated cost to do each element of each suboperation manually, or in mechanized way, or automatically.

Ralph Barnes is the first PhD in Industrial Engineering. He wrote the popular text, Motion and Time Study.

Industrial engineers have to learn mechanization and automation that is engineering very well and use it in industrial engineering to provide increased support of machines to people to increase their productivity and standard of living.

Principles of Motion Economy



Automation Principles - Mikell Groover

 USA Principle

The USA Principle is the industrial engineering approach used for automation.

.USA stands for

1. Understand the existing process

2. Simplify the process - Improve the process with current facilities by eliminating waste activities.

3. Automate the process.


Understand the Existing Process. This is the first step of any IE study.

Simplify the Process.  This is a step of ECSR steps of industrial engineering. 

Automate the Process. Once the current process has been improved eliminating the waste activities, automation can be studied.  It is important to remember the principle of reengineering. It is very important for the new technology implementer to thoroughly understand the new technology and use its full power in converting the input into the operation or process into output. The current process is not a constraint for the new automatic production process design.

Ten Strategies for Automation of Production Systems

Groover in 1980 suggested the following ten.

1. Specialization:  Design special-purpose equipment to perform one operation with the greatest possible efficiency.

2. Combined operations.  Complex parts production  require tens  or even hundreds, of processing steps. The strategy of combined operations involves reducing the number of distinct production machines or work stations  by performing more than one operation at a given machine. An economic evaluation has to be done for combining specialized machines.

3. Simultaneous operations. A logical extension of the combined operations strategy is to simultaneously perform the operations that are combined at one workstation. 

4. Integration of operations. Another strategy is to link several workstations together into a single integrated mechanism, using automated work handling devices to transfer parts between stations. Scheduling becomes simplified.  

5. Increased flexibility. Design for flexibility

6. Improved material handling and storage. Automated material handling and storage systems give reduced work-in-process and shorter manufacturing lead times.

7. On-line inspection. Incorporating inspection into the manufacturing process permits corrections to the process as the product is being made and also reduces errors.

8, Process control and optimization. This includes a wide range of control schemes intended to operate the individual processes and associated equipment more efficiently from more central locations.

9. Plant operations control. There is control of the individual manufacturing processes. But we required also  control at the plant level. It attempts to manage and coordinate the aggregate operations in the plant more efficiently. Its implementation usually involves a high level of computer networking within the factory.

10. Computer-integrated manufacturing (CIM). Integration of factory operations with engineering design and the business functions of the firm, CIM involves extensive use of computer applications, computer data bases, and computer networking throughout the enterprise




Productivity Measurement


Work system productivity design requires measurements - work, cost, productivity.

Work System Theory


Work system theory: an integrated, evolving body of assumptions, concepts, frameworks, and principles for analyzing and designing systems in organizations
Steven Alter


Updated on 21.6.2023,  7 November 2020
First published on 19 October 2020



Wednesday, April 6, 2022

Work System Theory - Introduction, Literature Review and Bibliography

 


Very interesting paper. The paper is related to IS domain.

Work System Theory: Overview of Core Concepts, Extensions. 

https://core.ac.uk/download/pdf/216977963.pdf

Basic Steps in Work Systems Design - Prof. Gerald Nadler - 1963

 

A step-by-step channeling of the thought processes, ingenuity, and inventiveness of people is necessary to design ideal systems to reach the objectives of system effectiveness and productivity  The Work Design approach integrates the engineering knowledge, design philosophy, work system design philosophy, and work system design program into a dynamic design of work systems.  


The work design approach has ten steps. 


1. Function determination. 

2. Ideal system development. 

3. Information gathering. 

4. Alternative system suggestions. 

5. Select the feasible solution. 

6. Formulate the work system. 

7. Review the work system design.

8. Test the work system design. 

9. Install the work systems and methods. 

10. Performance criteria established. 


The design approach can be characterized as a process for handling, transforming, organizing, creating, evaluating, etc., information that appears pertinent to a specific system function. Each step prepares the information for the next step along with the new information and questions it generates.   The applications approach for systems design is an iterative process. Certain decisions are made at one step which are used for proceeding to the next step, even though the complete range of decisions at the former step has not been made. The latter step frequently provides information which requires a return to the former step for modification of the original decision and of decisions about other phases.  


A deeper look at each step in the applications approach would reveal that each step is performed by the iterative process of applying the whole ten-step approach to the individual step. For example, in case of the third step, information gathering, the first thing to do is to determine the function for the activity of information gathering (what is the function and what minimum limitations). Then what is the ideal system for achieving the function of information gathering, what information is needed to implement the ideal system of gathering information, what alternatives can be suggested for the ideal system of gathering information, what is the feasible solution for gathering information, review and test this information gathering solution, install the feasible solution for gathering information by gathering the required data, and finally evaluating the performance of the information gathered to determine if a feedback to a previous step is essential or move to the next step in work design approach can be made. 


1.Function Determination 


For design of new work, management actions should automatically bring new work system requirements to the attention of the proper workshop group or project team. The steps to be taken by the project team are:  (1) specification of the system function, (2) the definition of the minimum limitations to be placed on the design of the ideal system for the function, and, if the system is large and/or complex, (3) the establishment of the functional components of the work system 

The first step, defining the function specification, establishes what is desired from the system. By including additional systems of which the selected system is a part, the function specification will be broader and will usually involve fewer limitations on the system design.  Some limitations or constraints are almost certain to remain. 

To enable design to take place, functional components need to be established for assignment to separate groups or individuals who will use the applications approach right from function specification for their component. The function specification should also look horizontally in both directions beyond the organization, to organizations for whom the service or product is intended and from whom input items are received. 


2. Ideal System Development 

The principles of Work Design are used by project teams and workshop groups to generate several ideal systems to accomplish the function, within the limitations on the system. All parts of all the system characteristics must be designed in this step. Each characteristic is not designed independent of the others for every characteristic interacts with every other one. Compatibility among the characteristics is obtained by balancing and optimizing the various component and system ideal suggestions. The ideal systems are actually designed, most often in block form. The minimum restrictions must always be questioned in this step to eliminate them if possible. Ideal system designs beyond the system level selected should be encouraged.  The fundamental ideal work system for any function will balance the design for all system characteristics to arrive at complete automation. The only way to get the best practical recommendation is to design the automatic system first. If the devices cannot be used because of cost or other factors, manual work can be introduced to perform only those sections of automation not yet feasible. The several ideal systems are divided into ultimate and technologically workable ideal systems. The ultimate ideal systems are sent to research and development to determine potential feasibility and future research projects, some of which may change the function specifications. One technologically workable ideal system is selected as the model to use for the rest of the applications approach. It should be defined sufficiently to be included in the final report on the project. The other technologically workable systems are used as alternatives should the first selection prove too difficult to implement. 


3.Information Gathering 

The process of selecting the technologically workable ideal system to be used as the model for the rest of the approach raises many questions related to the design of the system, its manner of implementation, basic organizational data (sales, costs), and so forth. By this time, much information needs to be gathered about the questions which are raised. This step seeks out the basic information necessary to put the ideal system model from step 2 into operation. The information to be gathered is more useful and therefore must make the ideal system more practical, or supply answers to the questions raised by the ideal system development. 


4.Alternative System Suggestions

Some of the information gathered in Step 3 will show that aspects of the technologically workable ideal system model will not be feasible as designed. However, with this system as a model from which minimum departure should be made, possible alternatives are developed. Ingenuity, imagination, and creative thinking of everyone in the teams and groups are needed to determine how the ideal system can be accomplished with the least backing away. 


5. Select the Feasible Solution

The basic evaluation factors, economics, hazard, control, and psychological, are used to select the one workable or practical system or combination of suggestions which comes closest to the ideal system model and best fits the situation. The key objective of this step is expressed by the word “feasible.” Feasibility in Work Design concerns two aspects, the evaluation factors with economic considerations usually most important, and the minimum departure from the ideal system model. 


6. Formulate the Work System

The process of selecting a feasible solution usually involves a rough determination of the final system to be used. In this step, the exact details of the system are formulated. All parts of all system characteristics must be specified. Several design parameters within the feasible system context may, need optimizing techniques to make the final selection and detailing. Formulation may even be concerned with preparing the instructions for putting the work system into operation.



7. Review the Work System Design

Rather than assume that all design details have been completed and questions have been answered in Step 6, this step advises a stop-for-a-moment attitude to re-examine the work system designs. This avoids the premature installation of a system. In addition to checking details for corrections, substitutions, and omissions, review serves to determine if it is at all possible to move further toward the ideal system. This step should force another comparison with the ideal system to achieve still better results.  In some cases, another evaluation of the basic objectives and the function specification is made. 


8. Test the Work Design

The review step is the mental approach to the same objective that this step approaches mechanically or physically. This step is another deterrent to taking action too rapidly. In many cases an actual trial of the proposed work system will not be possible or feasible. Designs that can be tested by pilot setup, mock-up, trial equipment, simulation, and so forth, have an added chance of success after installation.  


9. Install the Work Systems and Methods

If the work system has been successfully carried through the design, review, and test of Steps 6, 7, and 8, the system is ready to be installed. The installation requires authorizing construction of facilities, purchases of equipment, tooling, materials and provision of power and utilities. People are to be recruited and have to be trained in the desired procedure, and instructed in the care and set-up of the equipment. Supervision must be assigned to make the installation and to make certain that the new procedures are being followed. Debugging and shakedown of equipment, methods, and procedures must be anticipated. Adequate plans must be made for the installation step to avoid wasting all the work of the other steps. 


10. Performance Criteria Established

A work system that is newly installed should be evaluated to determine how well the goal has been met, and to establish the operating expectations of the system. Performance criteria serve these purposes and also become the measures used in the betterment program to make the application of Work Design a continuing process. 


Adapted from:

Chapter 23 BASIC STEPS IN APPLYING WORK DESIGN 

Nadler, Gerald, Work design, R.D. Irwin, Homewood, Ill.,1963.

Redesigning Work Design Theories: The Rise of Relational and Proactive Perspectives

January 2009The Academy of Management Annals 3(1):317-375

DOI:10.1080/19416520903047327

Project: Proactivity in the work place

Authors:

Adam M Grant

University of Pennsylvania

Sharon K Parker

Curtin University

https://www.researchgate.net/publication/277440824_7_Redesigning_Work_Design_Theories_The_Rise_of_Relational_and_Proactive_Perspectives


Designing For Technological Change: People In The Process
EDWARD O. LAUMANN, GERALD NADLER, AND BRIGID O'FARRELL
National Academies of Sciences, Engineering, and Medicine. 1991. People and Technology in the Workplace. Washington, DC: The National Academies Press. https://doi.org/10.17226/1860.

https://nap.nationalacademies.org/read/1860/chapter/2#3


Theory of Planning and Design
https://coek.info/pdf-a-timeline-theory-of-planning-and-design-.html


Work Systems Design - Related articles

Design of Work Systems, Machine Methods, Operator Methods, and Work Measurement - Ralph Barnes

Basic Steps in Work Systems Design - Prof. Gerald Nadler - 1963

Principles of Work System Design

Work Systems - Definition and Evolution of Work Systems Design in Industrial Engineering



Ud. 6.4.2020

Pub 3.11.2020


Dynamic Work Design - MIT Professors



IDEAS MADE TO MATTER - ORGANIZATIONAL CULTURE

The 4 principles of dynamic work design
 Apr 25, 2018
Dynamic work design allows knowledge-based employees to find and fix issues and make improvements in real time, just like on the factory floor.

Dynamic work design is a more effective method of managing workflow, especially intellectual work, says MIT Sloan senior lecturer Donald Kieffer. Using four underlying principles, he defines two distinct types of work for both physical work and intellectual work: “Factory” and “studio.”

https://mitsloan.mit.edu/ideas-made-to-matter/4-principles-dynamic-work-design


Dynamic Work Design is based on four principles:

ALIGN AND RECONCILE ACTIVITY AND INTENT Did my actions meet the goal? Do I know the best way?
CONNECT THE HUMAN CHAIN THROUGH TRIGGERS AND CHECKS Who do I ask for help? When do I check in?
STRUCTURE PROBLEM SOLVING AND CREATIVITY If the activity did not deliver the intent, why? And what are we doing about it?
MANAGE OPTIMAL CHALLENGE How much gap between activity and intent can we handle?

http://dynamicworkdesign.mit.edu/why-dynamic-work-design-matters/


Discover Dynamic Work Design with MIT's Nelson Repenning
12 Apr 2021n Executive Education

Learn about the benefits of implementing the Dynamic Work Design technique in your own organization directly from one of its creators.

Join MIT Professor Nelson Repenning as we learn how to:
• Ensure that business targets and improvement activities are tightly linked at every level
• Develop inquiry and evidence-based problem-solving skills for individuals and for organizations
• Create a more dynamic, agile management system that allows rapid, ongoing adaptation to a changing world

Interested in learning more? 
Join Nelson Repenning - upcoming MIT Sloan Executive Education courses, 
Visual Management for Competitive Advantage: MIT’s Approach to Efficient and Agile Work, and Business Process Design for Strategic Management
https://www.youtube.com/watch?v=pJwU-MZckTk


Unlock Your Organization’s Full Potential with Dynamic Work Design
14 Apr 2018

MIT Sloan Executive Education

Continuous improvement strategies such as Lean Six Sigma or the Toyota Production System are well understood in the context of the factory floor. What many executives don’t realize, however, is that when properly applied, the concepts and principles underpinning these methods produce even quicker and more powerful results in the office.

If you’re interested in improving work, no matter what type of work it may be, watch this webinar presented by MIT Sloan Senior Lecturer Don Kieffer.

You may also be interested in his courses Implementing Improvement Strategies: Dynamic Work Design (https://executive.mit.edu/iis) and Business Process Design for Strategic Management (self-paced online).  (https://executive.mit.edu/bpd)
https://www.youtube.com/watch?v=uANbmvmwhG8


https://medium.com/open-learning/strategy-lessons-from-the-toyota-factory-line-8b02002c5c14

Ud. 6.4.2022
Pub: 1.7.2019


Work Systems Engineering - Groover


Work in work systems refers to human work


Work Is our primary means of livelihood
Serves an important economic function in the global world of commerce
Creates opportunities for social interactions and friendships
Provides the products and services that sustain and improve our standard of living


Work is an activity in which one exerts physical and mental effort to accomplish a given task or perform a duty
Task or duty has some useful objective
Worker applies skills and knowledge for successful completion
The activity has commercial value
The worker is compensated


Work Systems and the Methods, Measurement, and Management of Work
by Mikell P. Groover, 2007
Pearson Education, Inc., Upper Saddle River, NJ.






ISO 6385:2016
Ergonomics principles in the design of work systems
ISO 6385:2016
Ergonomics principles in the design of work systems

ISO 6385:2016 establishes the fundamental principles of ergonomics as basic guidelines for the design of work systems and defines relevant basic terms. It describes an integrated approach to the design of work systems, where ergonomists will cooperate with others involved in the design, with attention to the human, the social and the technical requirements in a balanced manner during the design process.



The term "work system" in this International Standard is used to indicate a large variety of working situations, including permanent and flexible work places. The intention of this International Standard is to assist in the improvement, (re)design or change of work systems. Work systems involve combinations of workers and equipment, within a given space and environment, and the interactions between these components within a work organization. Work systems vary in complexity and characteristics, for example, the use of temporary work systems. Some examples of work systems in different areas are the following:

- production, e.g. machine operator and machine, worker and assembly line;

- transportation, e.g. driver and car or lorry, personnel in an airport;

- support, e.g. maintenance technician with work equipment;

- commercial, e.g. office worker with workstation, mobile worker with a tablet computer, cook in a restaurant kitchen;

- other areas like health care, teaching and training.




The definitions and ergonomic principles specified in this International Standard apply to the design of optimal working conditions with regard to human well-being, safety and health, including the development of existing skills and the acquisition of new ones, while taking into account technological and economic effectiveness and efficiency.



https://www.iso.org/standard/63785.html



Updated on 6.4.2022
Pub 15.10.2017


Work Systems Design


ILO Occupational Safety Handbook discussed four elements of Work Systems Design
Principles and guidelines for human factors /ergonomics (HFE) design and management of work systems
http://www.ilo.org/wcmsp5/groups/public/---ed_dialogue/---lab_admin/documents/publication/wcms_826596.pdf




Workstations

Tools

Controls, Indicators and Panels

Information Processing and Design


Ud. 6.4.2022
Pub 11.7.2012

Work Systems - 2013 - Mikell P. Groover - Book Information

INDUSTRIAL ENGINEERING is redesign (engineering) of Products, Facilities and Processes for Productivity increase.
Productivity Management Imperative for USA - McKinsey. Returning US productivity to its long-term trend of 2.2 percent annual growth would add $10 trillion in cumulative GDP over the next ten years (2023 - 2030).

INTRODUCTION TO MODERN INDUSTRIAL ENGINEERING. E-Book FREE Download. 

This book has many topics relevant to the subject introduction to industrial engineering. Value analysis, and optimization are two areas that are to be added.  (Comment in 2015).



Work Systems - 2013 - Mikell P. Groover - Important points of the chapters


Work System Defined

As a physical entity, a work system is a system consisting of humans, information, and equipment designed to perform useful work

As a field of professional practice, work systems include:
Work methods - analysis and design of tasks and jobs involving human work activity
Work measurement – analysis of a task to determine the time that should be allowed to perform the task

Jobs and Occupations
 Four broad categories that reflect the work content and job function: 
1. Production workers - make products 
2. Logistics workers - move materials, products, or people
3. Service – provide a service, apply existing information and knowledge, communicate 
4. Knowledge workers - create new knowledge, solve problems, manage

Productivity
Productivity is the level of output of a given process relative to the level of input
Process can refer to 
 Individual production or service operations
 Productivity is an important metric in work systems because  Improving productivity is the means by 
which worker compensation can be increased without increasing the costs of products and services they produce

Factors Impact on Productivity
 Labor itself does not contribute much to improving productivity 
 More important factors beside Labor:  Capital - substitution of machines for 
human labor
 Technology - fundamental change in the way some activity or function is accomplished

Important to recognize important gains in productivity are more likely to be made 
 By the introduction of capital and technology in a work process
 Than by attempting to get more work in less time out of the workers

Productive Work Content
A given task performed by a worker can be considered to consist of 
 Basic productive work content
 Theoretical minimum amount of work required to accomplish the task

 Excess nonproductive activities
 Extra physical and mental actions of worker
 Do not add value to the task
 Do not facilitate the productive work content
 Take time

Excess Nonproductive Activities Can be classified into three categories:
 Excess activities due to poor design of product or service
 Excess activities caused by inefficient methods, poor workplace layout, and 
interruptions
 Excessive activities cause by the human factor

Poor Design of Product or Service

 Products with more parts than necessary, causing excess assembly time
 Product proliferation
 Frequent design changes
 Waste of materials
 Quality standards too stringent

Inefficient Methods, Layout, Etc.

 Inefficient layout that increases material handling activities
 Inefficient workplace layout that increases hand, arm, and body motions
 Methods that include unnecessary work elements that waste time
 Frequent equipment breakdowns
 Workers waiting for work

The Human Factor
 Absenteeism
 Tardiness
 Workers deliberately working slowly
 Inadequate training of workers
 Industrial accidents caused by human error
 Hazardous materials that cause occupational illnesses

Work Systems:  The Methods, Measurement and Management of Work

Mikell P. Groover
Pearson New International Edition:
Pearson Education, Limited, Nov 1, 2013 - 744 pages

For sophomore or junior-level courses in industrial engineering. This book provides up-to-date, quantitative coverage of work systems and how work is analyzed and designed. Thorough, broad-based coverage addresses nearly all of the traditional topics of industrial engineering that relate to work systems and work science. The author's quantitative approach summarizes many aspects of work systems, operations analysis, and work measurement using mathematical equations and quantitative examples.

https://books.google.co.in/books/about/Work_Systems_Pearson_New_International_E.html?id=h41MngEACAAJ


https://bookshop.pearson.de/technology-engineering-agriculture/technology-general-issues/technical-design/work-systems-pearson-new-international-edition.html


Table of Contents


Chapter 1 INTRODUCTION

1.1 The Nature of Work

1.2 Work System Defined

1.3 Types of Occupations

1.4 Productivity

1.5 Organization of the book

Part I Work Systems and How They Work 


Chapter 2 MANUAL WORK AND WORKER-MACHINE SYSTEMS

2.1 Manual Work Systems

2.2 Worker-Machine Systems

2.3 Automated Work Systems

2.4 Determining Worker and Machine Requirements

2.5 Machine Clusters

Chapter 3 WORK FLOW, BATCH PROCESSING, AND WORK CELLS

3.1 Sequential Operations and Work Flow

3.2 Batch Processing

3.3 Defects in Sequential Operations and Batch Processing

3.4 Work Cells and Worker Teams

Chapter 4 MANUAL ASSEMBLY LINES

4.1 Fundamentals of Manual Assembly Lines

4.2 Analysis of Single Model Assembly Lines

4.3 Line Balancing Algorithms

4.4 Other Considerations in Assembly Line Design

4.5 Alternative Assembly Systems

Chapter 5 LOGISTICS OPERATIONS

5.1 Introduction to Logistics

5.2 Transportation Operations

5.3 Material Handling

5.4 Quantitative Analysis of Material Handling Operations

https://www.slideshare.net/MuhammadImran294/    ch05-logistics

Chapter 6 SERVICE OPERATIONS AND OFFICE WORK

6.1 Service Operations

6.2 Office Work

https://www.slideshare.net/MuhammadImran294/    ch06-service-operations

Chapter 7 PROJECTS AND PROJECT MANAGEMENT

7.1 Projects

7.2 Project Management

7.3 Project Scheduling Techniques

7.4 Project Crashing

7.5 Software for Projects

https://slideplayer.com/slide/   7969803/

Part II Methods Engineering and Layout Planning


Chapter 8 INTRODUCTION TO METHODS ENGINEERING AND OPERATIONS ANALYSIS

8.1 Evolution and Scope of Methods Engineering

8.2 How to Apply Methods Engineering

8.3 Basic Data Collection and Analysis Techniques

8.4 Methods Engineering and Automation

https://slideplayer.com/slide/ 13127598/  chapter 8

Chapter 9 CHARTING AND DIAGRAMMING TECHNIQUES FOR OPERATIONS ANALYSIS

9.1 Overview of Charting and Diagramming Techniques

9.2 Network Diagrams

9.3 Traditional Industrial Engineering Charts and Diagrams

9.4 Block Diagrams and Process Maps

https://slideplayer.com/slide/ 5663857/  Chapter 9

https://slideplayer.com/slide/ 11278263/    Supplement material to Ch 9.

Chapter 10 MOTION STUDY AND WORK DESIGN

10.1 Basic Motion Elements and Work Analysis

10.2 Principles of Motion Economy and Work Design

Chapter 11 FACILITY LAYOUT PLANNING AND DESIGN

11.1 Types of Production Plant Layouts

11.2 Other Types of Layouts

11.3 Systematic Layout Planning

Part III Time Study and Work Measurement

Chapter 12 INTRODUCTION TO WORK MEASUREMENT

12.1 Time Standards and How They Are Determined

12.2 Prerequisites for Valid Time Standards

12.3 Allowances in Time Standards

12.4 Accuracy, Precision, and Application Speed Ratio in Work Measurement

Chapter 13 DIRECT TIME STUDY

13.1 Direct Time Study Procedure

13.2 Number of Work Cycles to be Timed

13.3 Performance Rating

13.4 Time Study Equipment

Chapter 14 PREDETERMINED MOTION TIME SYSTEMS

14.1 Overview of Predetermined Motion Time Systems

14.2 Methods-Time Measurement (MTM)

14.3 Maynard Operation Sequence Technique (MOST)

Chapter 15 STANDARD DATA SYSTEMS

15.1 Using a Standard Data System

15.2 Developing a Standard Data System

15.3 Work Element Classifications in Standard Data Systems

15.4 Analysis of Machine-Controlled Element Times

15.5 SDS Advantages and Disadvantages

Chapter 16 WORK SAMPLING

16.1 How Work Sampling Works

16.2 Statistical Basis of Work Sampling

16.3 Application Issues in Work Sampling

Chapter 17 COMPUTERIZED WORK MEASUREMENT AND STANDARDS MAINTENANCE

17.1 Computer Systems for Direct Time Study and Work Sampling

17.2 Computerized Systems Based on Predetermined Motion Times and Standard Data

17.3 Work Measurement Based on Expert Systems

17.4 Maintenance of Time Standards

Chapter 18 THE ECONOMICS AND APPLICATIONS OF TIME STANDARDS

18.1 Economic Justification of Work Measurement

18.2 Applications of Time Standards and Time Study

Chapter 19 LEARNING CURVES

19.1 Learning Curve Theory

19.2 Why the Learning Curve Occurs

19.3 Estimating or Determining the Learning Rate

19.4 Factors Affecting the Learning Curve

19.5 Learning Curve Applications

19.6 Time Standards Versus the Learning Curve

PART IV New Approaches in Process Improvement and Work Management 


Chapter 20 LEAN PRODUCTION

20.1 Elimination of Waste in Production

20.2 Just-In-Time Production

20.3 Autonomation

20.4 Worker Involvement

Chapter 21 SIX SIGMA AND OTHER QUALITY PROGRAMS

21.1 Overview and Statistical Basis of Six Sigma

21.2 The Six Sigma DMAIC Procedure

21.3 Other Quality Programs

Part V Ergonomics and Human Factors in the Workplace 


Chapter 22 INTRODUCTION TO ERGONOMICS AND HUMAN FACTORS

22.1 Overview of Ergonomics

22.2 Human-Machine Systems

22.3 Topic Areas in Ergonomics

Chapter 23 PHYSICAL ERGONOMICS: WORK PHYSIOLOGY AND ANTHROPOMETRY

23.1 Human Physiology

23.2 Muscular Effort and Work Physiology

23.3 Anthropometry

Chapter 24 COGNITIVE ERGONOMICS: THE HUMAN SENSORY SYSTEM AND INFORMATION PROCESSING

24.1 The Human Sensory System

24.2 Perception

24.3 Attention Resources

24.4 Memory

24.5 Response Selection and Execution

24.6 Common Cognitive Tasks

24.7 Design Guidelines for Cognitive Work

Chapter 25 THE PHYSICAL WORK ENVIRONMENT

25.1 The Visual Environment and Lighting

25.2 The Auditory Environment and Noise

25.3 Climate Control in the Work Environment

Chapter 26 OCCUPATIONAL SAFETY AND HEALTH

26.1 Industrial Accidents and Injuries

26.2 Occupational Disorders and Diseases

26.3 Occupational Safety Health Laws and Agencies

26.4 Safety and Health Performance Metrics

Part VI Traditional Topics in Work Management


Chapter 27 WORK ORGANIZATION

27.1 Organization Principles

27.2 Organization Structures

Chapter 28 WORKER MOTIVATION AND THE SOCIAL ORGANIZATION AT WORK

28.1 Motivation and Job Satisfaction

28.2 The Social Organization at Work

Chapter 29 JOB EVALUATION AND PERFORMANCE APPRAISAL

29.1 Job Evaluation

29.2 Performance Appraisal

Chapter 30 COMPENSATION SYSTEMS

30.1 Overview of Compensation Systems

30.2 Time-Base Pay Systems

30.3 Direct Wage Incentive Systems

30.4 Gain Sharing

30.5 Profit Sharing

Appendix: Statistical Tables



Work Systems - 2013 - Mikell P. Groover - Important points of the chapters


Work System Defined

As a physical entity, a work system is a system consisting of humans, information, and equipment designed to perform useful work

As a field of professional practice, work systems include:
 Work methods - analysis and design of tasks and jobs involving human work activity
 Work measurement – analysis of a task to determine the time that should be allowed to perform the task

Jobs and Occupations
 Four broad categories that reflect the work content and job function: 
1. Production workers - make products 
2. Logistics workers - move materials, products, or people
3. Service – provide a service, apply existing information and knowledge, communicate 
4. Knowledge workers - create new knowledge, solve problems, manage

Productivity
Productivity is the level of output of a given process relative to the level of input
 Process can refer to 
 Individual production or service operations
 Productivity is an important metric in work systems because  Improving productivity is the means by 
which worker compensation can be increased without increasing the costs of products and services they produce

Factors Impact on Productivity
 Labor itself does not contribute much to improving productivity 
 More important factors beside Labor:  Capital - substitution of machines for 
human labor
 Technology - fundamental change in the way some activity or function is accomplished

Important to recognize important gains in productivity are more likely to be made 
 By the introduction of capital and technology in a work process
 Than by attempting to get more work in less time out of the workers

Productive Work Content
A given task performed by a worker can be considered to consist of 
 Basic productive work content
 Theoretical minimum amount of work required to accomplish the task

 Excess nonproductive activities
 Extra physical and mental actions of worker
 Do not add value to the task
 Do not facilitate the productive work content
 Take time

Excess Nonproductive Activities Can be classified into three categories:
 Excess activities due to poor design of product or service
 Excess activities caused by inefficient methods, poor workplace layout, and 
interruptions
 Excessive activities cause by the human factor

Poor Design of Product or Service

 Products with more parts than necessary, causing excess assembly time
 Product proliferation
 Frequent design changes
 Waste of materials
 Quality standards too stringent

Inefficient Methods, Layout, Etc.

 Inefficient layout that increases material handling activities
 Inefficient workplace layout that increases hand, arm, and body motions
 Methods that include unnecessary work elements that waste time
 Frequent equipment breakdowns
 Workers waiting for work

The Human Factor
 Absenteeism
 Tardiness
 Workers deliberately working slowly
 Inadequate training of workers
 Industrial accidents caused by human error
 Hazardous materials that cause occupational illnesses



Tuesday, September 28, 2021

Design Thinking and Industrial Engineering



Do industrial engineers need design thinking?

Design Thinking for Managers
Design Thinking can do for organic growth and innovation what TQM did for quality.
http://nraombakc.blogspot.com/2013/08/design-thinking-for-managers.html


Industrial engineers redesign product and processes. Hence development in design process, design thinking is relevant for industrial engineers.

What is Design Thinking?


Design thinking is Ideo's approach for design which is human-centered. As a design company, Ideo tries to solve design problems starting with the user's requirements, feelings and difficulties in using or experiencing products. While tech-centered companies focus on their technical capabilities to design products, Ideo focuses on its behavioral research skills to understand the customers' pain points and pleasure points.

Ideo's research for product design is based on teams having persons from diverse disciplines spanning from business to behavior sciences (that includes engineers and scientists). The research team tries to observe consumers during their product evaluation and purchase decisions through videos and photographs apart from interviews. It uses photographs and videos persons in physical locations of the companies to observe how they feel and why they feel in the location. The insights gained are used to improve the facility. It forms of groups of consumers to help it in evaluating the experience in using products and encourages them to take pictures and videos and write descriptions regarding their feelings on various aspects of the products.

Frequent prototypes of are made of the proposed products so that consumers can give their evaluation more frequently about the proposed products. It encourages its employees and the employees of client companies to participate in the research project. One illustration of the benefit of this approach is an objection by Steve Jobs to the noise made the movement of a proposed mouse design. It was resolved by rubber coating the steel ball.

The principal focus of Ideo is on solving usability problem for consumers. It research is broad to cover many consumers and in depth to discuss issues with select group of consumers. The approach of Ideo now became a design excellence model like that of Toyota Production System for World Class Manufacturing.

(Source: Marketing Case Study in Kotler and Keller, Marketing Management, 15th Ed. P.160-161)



Today (4 May 2017), I came across an interesting article on design thinking.

NO PROCESS, JUST 4 TENETS OF DESIGN THINKING
Published on April 22, 2017 by Manoj Kothari, Director & Chief Design Strategist - Turian Labs on Linkedin.

https://www.linkedin.com/pulse/process-just-4-tenets-design-thinking-manoj-kothari

He emphasizes four points:  Empathic Inquiry, Abductive Reasoning, Visual Thinking or Creative Visualization and Iterative Prototyping.

Empathic inquiry is to go and stand in the posture of the users. Go and sit in the posture of the user. Understand the users' requirement from the their point of view. Go and use the item as they are using. Don't come with an ideal way of using it all the 8 hours or more a users uses an item. Understand why he does a thing the way he does it.

Aductive reasoning: Imagine various possibilities.

Visual thinking: Don't use only words to express. Use pictures and visuals.

Iterative prototyping - Once again don't limit yourself to picture or a design drawing. Convert it into prototype that can be seen as a 3D shape and handled.

I think industrial engineers have to accept all the four points and incorporate rate them into their design process.

Ud 28.9.2021
Pub. 4 May 2017