Difference Between Time Study, Production Study, Method Study, and Motion Study
Aspect | Time Study | Production Study | Method Study | Motion Study |
---|---|---|---|---|
Definition | Measurement of the time taken to complete a task. | Analysis of production output and efficiency. | Study to improve the process or method of work. | Study of physical movements to optimize efficiency. |
Objective | Determine standard time for tasks. | Evaluate and improve production performance. | Simplify and standardize work methods. | Eliminate unnecessary movements and reduce fatigue. |
Focus | Time required for a task or operation. | Output, efficiency, and bottlenecks. | Work process, tools, and layout. | Worker movements and ergonomics. |
Tools Used | Stopwatch, time sheet, or software. | Production records, efficiency reports. | Flowcharts, process charts, layout diagrams. | Motion charts, video analysis, and stop-motion tools. |
Outcome | Standard time for operations. | Improved productivity and reduced downtime. | Optimized methods for higher efficiency. | Reduced unnecessary motions and improved ergonomics. |
Examples Related to the Garments Industry
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Time Study Example
An industrial engineer observes an operator stitching the side seam of a T-shirt. The engineer records the time taken to complete 10 cycles of stitching.- Objective: Calculate the standard time for stitching one side seam.
- Result: The time required for one side seam is determined to be 0.8 minutes.
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Production Study Example
An industrial engineer monitors the output of a sewing line producing polo shirts. The engineer analyzes how many pieces are completed in an 8-hour shift.- Objective: Identify whether the line meets its target of 500 pieces per shift.
- Result: The line produces 450 pieces, highlighting a need to improve efficiency.
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Method Study Example
A method engineer evaluates the process of attaching collars to shirts. The engineer notices unnecessary steps in picking up and placing collars.- Objective: Redesign the workstation to minimize movements and improve workflow.
- Result: The new method reduces the time for collar attachment from 1.5 minutes to 1.2 minutes.
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Motion Study Example
A motion analyst observes an operator performing button stitching. The operator frequently bends to pick up buttons from a tray placed below the workstation.- Objective: Eliminate unnecessary bending movements.
- Result: A button dispenser is placed at shoulder height, reducing operator fatigue and improving productivity.
Key Takeaway
- Time Study focuses on the duration of tasks.
- Production Study focuses on overall output and efficiency.
- Method Study aims to simplify and optimize the work process.
- Motion Study eliminates unnecessary movements for ergonomic and productivity improvements.
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