PMI CAPM (Certified Associate in Project Management) Examination Content OutlineQuality Management and Continuous Process ImprovementHard
A construction project manager is utilizing a Lean methodology to optimize material flow on the job site. They observe that workers frequently walk long distances to retrieve tools and materials, leading to wasted time. To address this, they propose reorganizing the tool cribs and material staging areas to be closer to the active work fronts. Which Lean principle is being applied to reduce this observed waste?
- APoka-Yoke
- B5S
- CJust-in-Time
- DValue Stream Mapping
Show answer & explanationAnswer & explanation
Correct answer: B. 5S
The 5S methodology (Sort, Set in Order, Shine, Standardize, Sustain) is a Lean technique focused on workplace organization and standardization. Reorganizing tool cribs and material staging areas to be closer to work fronts directly applies the 'Set in Order' (or Straighten) principle to reduce 'motion' waste and improve efficiency.
Why the other options are wrong
- A. Poka-Yoke (mistake-proofing) aims to prevent errors from occurring, not to optimize physical layout for efficiency.
- C. Just-in-Time focuses on delivering materials precisely when needed, reducing inventory and waiting, but not directly addressing the layout for tool/material retrieval.
- D. Value Stream Mapping is a tool to visualize the entire process flow to identify waste, not a direct solution for reorganizing physical space.
Lean 5S: Set in Order (Seiton)
The second step in the 5S methodology, focusing on arranging all necessary items in an organized manner for easy access and use.
- Aims to reduce search time and motion waste.
- Involves placing items at their point of use.
- Contributes to a more efficient and ergonomic workspace.
Memory trick: Lean on 5S to organize, so waste doesn't mesmerize.