Continuous improvement
ECRS: four ways to improve a work process
Learn ECRS through a packing cycle. Compare eliminating, combining, rearranging and simplifying work without assuming a cycle-time saving.
ECRS means eliminate, combine, rearrange and simplify. It gives a team four ways to examine work details after understanding what the process must deliver.
Art Smalley's LEI lesson explains the sequence through his experience of Toyota's improvement training. The letters prompt examination of the work; they do not supply a ready-made solution.
Examine the purpose before changing the step
| ECRS action | What to examine |
|---|---|
| Eliminate | Whether the activity is necessary for the required result or control |
| Combine | Whether related work can be performed together without losing a required check |
| Rearrange | Whether a different sequence or location reduces avoidable work |
| Simplify | What makes the remaining task difficult, error-prone or hard to learn |
A safety or quality check needs its own requirement review. Removing its name from a work sequence does not remove the condition it protects.
The eight-wastes Note helps identify wasted effort. ECRS then supports examining how particular work details could change.
Check whether less work changes elapsed time
The standard-work example has a fictional 48-second packing cycle. The operator walks for six seconds while an automatic sealing operation runs.
Reducing that walk to three seconds brings the operator back earlier. Waiting grows from two seconds to five, and the complete cycle remains 48 seconds. The machine still finishes at the same point.
Less walking may still improve the job. It just cannot support a three-second cycle-time saving in this sequence.
That distinction matters when the team compares improvement proposals. Record the affected manual work, machine time and overlap before turning a removed activity into an output or cash claim.
Test the revised method with the people doing it
Observe the work detail, its purpose and the conditions around it. Develop candidate changes with the operator, then check the consequences for safety, quality and the rest of the sequence.
The SMED example applies related questions to changeover work. Its timings belong to that separate case; they should not be added to this packing calculation.
After a supported trial, update the method and its instructions. Retain the before-and-after sequence so the next person can see which work changed and whether the claimed time was actually removed from the cycle.