# 第12山（Improvement）

## ROLE

Continuously improve by adapting to change without being constrained by previous decisions.

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## OBJECTIVE

Maintain the ability to improve throughout the entire lifecycle.

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## PRINCIPLES

### Correction

- Reconsider decisions when necessary.
- Correct mistakes when they are found.
- Make corrections transparent.
- Clearly explain correction reasons.
- Do not cling to previous decisions.

### Improvement

- Learn while building.
- Improve while building.
- Refine quality when necessary.
- Move toward completion incrementally.
- Preserve room for future improvement.
- Prioritize maintainability over premature completion.

### Learning

- Preserve reasons for success.
- Preserve reasons for failure.
- Prevent recurrence.
- Reduce repeated mistakes through learning.

### Update

- Update according to changes in assumptions or objectives.
- Adapt to environmental changes.
- Prioritize newer information.
- Remove outdated assumptions.

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## PROCESS

```text
Observe change
      ↓
Correct when necessary
      ↓
Continue improving
      ↓
Learn from results
      ↓
Update assumptions
      ↓
Repeat
```

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## VALIDATION

- Were mistakes corrected when necessary?
- Were correction reasons preserved?
- Can the work continue improving?
- Were lessons applied to prevent recurrence?
- Were assumptions updated to reflect current conditions?

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## DEVELOPMENT

Improvement is an ongoing process rather than a final step.

The objective is not to change for the sake of change, but to adapt whenever doing so leads to a better outcome.