The CORE Framework is a design thinking compass based on four powerful questions: Context, Object, Reaction, and Evolution.
It helps teams uncover weak points in architecture, design, and strategy by asking the right questions at the right time.
| CORE | Question |
|---|---|
| C: Context | Who is it for and for what purpose? |
| O: Object | What responsibilities does this structure serve? |
| R: Reaction | What changes when this action is taken? |
| E: Evolution | Can this design withstand future changes? |
- 🧭 CORE – 4 essential design questions to direct your thinking
- 🛠 Seven Ark – 7 practical perspectives to validate and refine your architecture
While CORE offers a compass to navigate design intent and structure,
Seven Ark provides a toolkit to evaluate testability, clarity, and adaptability in detail.
- 🧭 CORE Framework Overview
- ✅ CORE Framework Quick Check
- 🧪 CORE Framework Practical Use
- 📘 CORE Framework Usage Guide
- 🛠 Seven Ark Guide
- ✅ Seven Ark Checklist
All materials in this repository are licensed under the
Creative Commons Attribution 4.0 International (CC BY 4.0).
Please attribute: Masahiro Nakatsugawa — Creator of the CORE Framework