SMV & Work Measurement

Technical purpose

This lesson develops the factory-level judgement needed to apply SMV & Work Measurement in garment bulk production. You will link technical requirements to measurable controls, production decisions and release evidence.

Core operating method

1. Set the standard. Confirm the buyer specification, approved sample, test method and numeric acceptance limit.
2. Observe variation. Record actual conditions, material lot, machine settings, operator method and output data.
3. Control the process. Use first-piece approval, in-process checks and traceable records before defects travel downstream.
4. Verify improvement. Compare results against the sealed standard and confirm the correction holds across shifts and lots.

Applied factory case

A production line reports inconsistent results and rising rework. Review the process step-by-step: define the critical-to-quality point, identify three possible sources of variation, then propose containment and a root-cause check.

Stabilize methods and data before raising targets; improve the constraint before increasing labour or capacity.

Professional principle: A process is under control only when it produces the required result consistently across operators, shifts and production lots.

Knowledge check

• Which measurable condition proves this process is in control?
• What upstream cause could create a downstream defect?
• What document or record would prove the decision to a buyer or auditor?