Maynard explained operation analysis (in detail in a full book), which is part of process analysis based on the process charts (Gilbreth).
Nine Points of Primary Analysis of Operations.
There are nine main points or factors that should be considered in every operation analyzed.
These are as follows :
1. Purpose of operation.
2. Complete survey of all operations performed on part.
3. Inspection requirements.
4. Material.
5. Material handling.
6. Setup and tool equipment.
7. Common possibilities for job improvement.
8. Working conditions.
9. Method.
Please note method is one of the points of analysis.
Method. All analysis work is done for the purpose of improving the method by which the operation is done. The improvements done in other points result in change of method.
The various factors that affect method directly or indirectly are considered in detail, and improvements are made wherever possible. As a result, many economies are made that eliminate motions and reduce costs.
Before the study can be considered complete, however, the motions that remain and that appear to be necessary must themselves be studied in considerable detail. Motion study charts are to be prepared and motion analysis needs to be done. It is not enough to say that a part is to be obtained by picking it out of the gravity delivery chute. The location of the end of the chute should be such that the hand can move between it and the point where the material is worked upon with the shortest and lowest class motion. The height of the chute should be such that the transport motions can be made without a change of direction. The motions used for grasping must be worked out so that the fewest possible are employed. If two parts are required, it needs to be decided whether they are to be grasped and transported together or separately.
The best position of the hand and of the material in the hand must be determined so that no time is lost in positioning the material at the place of work.
In short, every motion must be analyzed in detail for the purpose of shortening it and making it as effective as possible. This, a secondary form of analysis, is known as motion study. Motion study is itself a detailed procedure which will require as lengthy a discussion as the subject of operation analysis (Maynard did not include motion study in operation analysis book There is a separate book by him on Time and Motion Study). Therefore, it will merely be mentioned here that motion study is part of the methods study step in operation analysis.
Method study - Areas of analysis
Arrangement of Work Area
Placement of Tools.
Placement of Materials
Placement of Supplies
Does the method follow Laws of Motion Economy?
Are lowest class motions used?
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