Analysis
- Developed “Cost of Change” Article with Design Philosophy Analysis:
- Formulated time-to-ship equation and identified cost of change as a key lever (alongside talent and effort)
- Explored the BDUF vs XP divide through the lens of different purposes for lowered cost of change:
- BDUF: Lower cost of change as an end (reduce rework via upfront design)
- XP: Lower cost of change as a means (embrace change via technical practices)
- Introduced the concept of subadditivity of cost of change - bundling forces that make combined changes cheaper than sequential ones
- Explored assumption vs change dynamics and when rework becomes acceptable
Raw Commits
Repository: meaningfool/meaningfool-writing Commit: [f6bbebe1c3ed4c2d996df3da950ca7fff7b9618e] Refine BDUF vs XP analysis and introduce subadditivity concept Description:
- Clarify distinction between BDUF and XP approaches to cost of change
- Add explanation of how lowered cost of change serves different purposes (end vs means)
- Introduce bundling forces section with subadditivity of cost of change
- Update scratchpad with design timing diagram note
Repository: meaningfool/meaningfool-writing Commit: [367bd268f83f324c9ea458923dca5476161eda0b] Clean up daily notes and expand cost of change article Description:
- Remove old daily note test files and entries
- Add new daily note for 2025-11-01
- Significantly expand cost of change article with:
- Clearer formulation of time-to-ship equation
- Introduction of design philosophy tradeoffs (avoiding vs embracing change)
- Discussion of assumption vs change dynamics
- Exploration of when rework becomes acceptable