Motion Comparison Study
Motion Study · Method study + Time study Method study / Time studyMethod study finds the most efficient way to do a job; time study measures the standard time for that method. Together they are work study, the basis for this tool.
On a fast-churning floor, even a recorded video of a veteran's standard operation won't show a newcomer which step they fall behind on. This tool places the standard operation (expert) and the target operation (to improve) side by side, quantifies the gap element by element, flags wasted motion and out-of-order steps, and produces a comparison report you can act on. Skill transfer no longer rests on watching a video and guessing.
- 1 · Compare
Standard and target play side by side in sync, motion timelines aligned. - 2 · Quantify
Standard time, motion-class breakdown, element-by-element difference report. - 3 · Improve ECRSThe four improvement principles in industrial engineering: Eliminate the unnecessary, Combine what can be done together, Rearrange the sequence, Simplify the method. Checking a countermeasure applies its principle and recomputes the improved cycle.
Check ECRS countermeasures and verify the improved cycle in real time.
Single-station assembly: pick parts, position the PCB, drive screws, connect wiring, inspect, place the finished unit. The classic method-study case.
Synthetic demo clips · not live footage
Motion timeline comparison
Standard time Standard timeStandard time = observed time × rating × (1 + allowance). The time a trained operator needs to finish one piece at a normal pace with reasonable allowances.
29.8sec / piece
Observed 24.0s × rating 1.10 × (1 + allowance 13%)
Cycle comparison Cycle timeThe total time for one work cycle. The gap between the standard cycle and the target cycle is the room for improvement.
Target takes 15.7s more (+65%)
Motion-class breakdown Motion element (therblig)The smallest unit of motion analysis. This tool sorts them into three classes: effective (advances the work, e.g. position, assemble), auxiliary (necessary but adds no value, e.g. reach, grasp, inspect), and ineffective (pure waste, e.g. search, hold, hesitate, repeat) which improvement targets first.
Comparison report
Element-by-element comparison of standard vs. target, with deviations and countermeasures (unit: seconds).
| Motion element | Class | Standard | Target | Diff | Deviation / countermeasure |
|---|---|---|---|---|---|
| Reach for part | Auxiliary | 1.2 | 1.4 | +0.2 | Meets standard |
| Grasp part | Auxiliary | 0.8 | 1.0 | +0.2 | Meets standard |
| Move and position PCB | Effective | 2.0 | 2.4 | +0.4 | Slower |
| Drive screws ×4 | Effective | 12.0 | 16.0 | +4.0 | Slower Fix: Electric driver with preset torque to standardize fastening. |
| Connect wiring | Effective | 4.0 | 5.0 | +1.0 | Out of order Fix: Follow the standard order: position and fasten first, then wire. |
| Visual inspection | Auxiliary | 2.5 | 3.0 | +0.5 | Slower |
| Place finished unit | Auxiliary | 1.5 | 1.6 | +0.1 | Meets standard |
| Search for part | Ineffective | — | 3.0 | +3.0 | Extra motion Fix: Switch the mixed bin to a compartmented bin so parts have fixed positions, eliminating search. |
| Hold fixture | Ineffective | — | 2.5 | +2.5 | Extra motion Fix: Add a locating fixture to hold the workpiece so both hands are freed. |
| Re-align (rework) | Ineffective | — | 1.8 | +1.8 | Repeat Fix: First-piece poka-yoke alignment to remove repeated re-alignment. |
| Hesitate / wait | Ineffective | — | 2.0 | +2.0 | Hesitation Fix: Work-sequence card plus pre-staged parts to remove hesitation. |
ECRS improvement & verification ECRSThe four improvement principles in industrial engineering: Eliminate the unnecessary, Combine what can be done together, Rearrange the sequence, Simplify the method. Checking a countermeasure applies its principle and recomputes the improved cycle.
Check the countermeasures to apply and recompute the improved cycle in real time.
Saved 0.0s (0%), closing 0% of the gap to standard