What is Lean methodology for process improvement?

Question

Accepted Answer

**Lean** — eliminate waste, maximize value.

**8 Wastes (DOWNTIME):**
- **D**efects — errors.
- **O**verproduction — too much.
- **W**aiting — idle time.
- **N**on-utilized talent — underused skills.
- **T**ransportation — unnecessary movement.
- **I**nventory — excess stock.
- **M**otion — unnecessary movement.
- **E**xtra processing — over-engineering.

**Example:**
```
Order process waste analysis:
- Waiting: Approval delays (2 days)
- Motion: 3 system switches
- Defects: 10% rework rate
Improvement:
- Auto-approval for < $1000
- Single dashboard
- Validation rules
```

**BA role:**
- Value stream mapping.
- Waste identification.
- Process optimization.

Business Analyst: What is Lean methodology for process improvement?