Method Study:
Method study enables the economic engineer to subject each operation to systematic analysis. the most purpose of method study is to eliminate the unnecessary operations and to realize the simplest method of performing the operation. Method study is additionally called methods engineering or work design.
Symbols utilized in Method Study:
Graphical method of recording was originated by Gilberth, so as to form the presentation ofthe facts clearly with none ambiguity and to enable to understand them quickly and clearly. It isuseful to use symbols rather than written description.
METHOD STUDY SYMBOLS
OPERATION
INSPECTION
TRANSPORTATION
DELAY
STORAGE
Operation
An operation occurs when an object is intentionally changed in one or more of its characteristics (physical or chemical). this means the most steps during a process, method or procedure. An operation always takes the thing one stage ahead towards completion.
Examples of operation are:
Turning, drilling, milling, etc.
A reaction .
Welding, brazing and riveting.
Lifting, loading, unloading.
Getting instructions from supervisor.
Taking dictation.
Inspection
An inspection occurs when an object is examined and compared with standard for quality and quantity. The inspection examples are:
Visual observations for finish.
Count of quantity of incoming material.
Checking the size .
Transportation
A transport indicates the movement of workers, materials or equipment from one place to a different .
Example: Movement of materials from one work station to a different .
Workers travelling to bring tools.
Delay (Temporary Storage)
A delay occurs when the immediate performance of subsequent planned thing doesn't happen .
Example: Work waiting between consecutive operations.
Workers waiting at tool cribs.
Operators expecting instructions from supervisor.
Storage
Storage occurs when the thing is kept in an authorised custody and is protected against unauthorised removal. for instance , materials kept in stores to be distributed to varied work.