As part of operation analysis, industrial engineers have to do supply chain analysis of the inputs to the operation. In general, this analysis may be sufficient if it is done at the operation at which new material is given as input into the process. Cost reduction in supply chain is the responsibility of industrial engineering, especially in engineering areas of the supply chain. Whatever operation analysis is carried out by them in their internal operations, they can extend it to supplier operations.
The procedure or modus operandi can be different. They can arrange for industrial engineering activity in supplier firms through either internal industrial engineers or consultants. They may directly go and do the observation and data collection.
The process charts and operation information sheets can be evaluated in their companies in the presence of representatives of supplier companies.
A supply chain industrial engineering committee can be set up with participation of industrial engineers from supplier firms. Supply chain industrial engineering is an important activity in supply chains and a suitable organization has to be developed by supply chain leader companies.
Operation process charts contain material input as part of the chart. Hence attaching supply chain information in operation process chart is natural and feasible in supply chain management era.
The component which is to be charted first in an assembly is chosen. A horizontal material line is drawn in the upper right hand portion of the paper used for charting. A brief description of the material is recorded directly above this line. A description, such as "20 ga. Steel Sheet" is sufficient. The purpose of the operation process chart to give a picture of the process as a whole to facilitate reasoning for doing the operations and examining the possibility of combining operations or splitting operations further or changing their sequence. For detailed analysis of each operation more detail is required and that is collected in operation information sheet of each operation. In order to identify the part which is being produced through the steps recorded in the operation process chart of that part, the name and identifying number of the part are recorded in capital letters directly above the material description.
A vertical flow line is next drawn down from the right hand end of the horizontal material line. Approximately 1/4 in. from the top point of this vertical flow line, the symbol circle is drawn for the first operation or inspection which is performed. To the right of this symbol, a brief description of the operation or inspection is recorded, such as "turn the diameter," or "Inspect incoming material." To the left of the symbol is recorded the time allowed for performing the required work. More information which adds value to the chart, such as department in which the work is performed, machine number, or labor classification utilized are recorded to the right of the symbol below the description of the operation.
When another component joins the first, a material line is drawn to the left of the vertical flow line to show the point at which the second component enters the process. If it is purchased material, a brief identification of the material, such as "Wing Nut No. 180" is placed directly above the material line. If it is a component produced inside the factory, there is a vertical flow line representing the process used to produce this component and that vertical line joins the horizontal material input line. This process line will have its material horizontal line at the top to the left and the operations and inspections performed on it in the vertical line. This same procedure is repeated as each new component joins one which is being charted. The final event which completes the assembly will thus appear in the lower right hand portion of the chart.
Thus we can see that material input into the process is already a part of the operation process chart. What is now being suggested in this article as an innovation in industrial engineering that facilitates supply chain industrial engineering is extending the material line backward into process of producing and transporting through the supply chain.
Operation process charts contain material input as part of the chart. Hence attaching supply chain information in operation process chart is natural and feasible in supply chain management era.
About the Conventions in Recording Operation Process Chart
The component which is to be charted first in an assembly is chosen. A horizontal material line is drawn in the upper right hand portion of the paper used for charting. A brief description of the material is recorded directly above this line. A description, such as "20 ga. Steel Sheet" is sufficient. The purpose of the operation process chart to give a picture of the process as a whole to facilitate reasoning for doing the operations and examining the possibility of combining operations or splitting operations further or changing their sequence. For detailed analysis of each operation more detail is required and that is collected in operation information sheet of each operation. In order to identify the part which is being produced through the steps recorded in the operation process chart of that part, the name and identifying number of the part are recorded in capital letters directly above the material description.
A vertical flow line is next drawn down from the right hand end of the horizontal material line. Approximately 1/4 in. from the top point of this vertical flow line, the symbol circle is drawn for the first operation or inspection which is performed. To the right of this symbol, a brief description of the operation or inspection is recorded, such as "turn the diameter," or "Inspect incoming material." To the left of the symbol is recorded the time allowed for performing the required work. More information which adds value to the chart, such as department in which the work is performed, machine number, or labor classification utilized are recorded to the right of the symbol below the description of the operation.
When another component joins the first, a material line is drawn to the left of the vertical flow line to show the point at which the second component enters the process. If it is purchased material, a brief identification of the material, such as "Wing Nut No. 180" is placed directly above the material line. If it is a component produced inside the factory, there is a vertical flow line representing the process used to produce this component and that vertical line joins the horizontal material input line. This process line will have its material horizontal line at the top to the left and the operations and inspections performed on it in the vertical line. This same procedure is repeated as each new component joins one which is being charted. The final event which completes the assembly will thus appear in the lower right hand portion of the chart.
Thus we can see that material input into the process is already a part of the operation process chart. What is now being suggested in this article as an innovation in industrial engineering that facilitates supply chain industrial engineering is extending the material line backward into process of producing and transporting through the supply chain.
Supply Chain - Industrial Engineering Tools and Techniques
8 Apr 2013
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(C) Narayana Rao K.V.S.S. 2020
First posted on 17 August 2020.
Supply Chain Industrial Engineering
8 Apr 2013_______________
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(C) Narayana Rao K.V.S.S. 2020
First posted on 17 August 2020.
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