CAGE
CAGE is a methodology that implements the emerging discipline of Business EWngineering.
Business Engineering is the evolution of Domain Driven Design. It recognizes the lack of separation between the business and software. Instead of treating software as an afterthought, we view the two as an integrated system whose purpose is to deliver value to the customer.
Business Engineering became practical once LLMs arrived in late 2022. CAGE tames their unpredictability: business engineers stay in control and selectively delegate to AI.
CAGE enables customer-focused, efficient delivery. The principles below explain how it does that.
CAGE in brief
- Intent first: Shared specifications capture strategy, governance, domain language, and architecture before any implementation work begins.
- Deterministic delivery: Change is generated and applied through defined hierarchies so that the same inputs always lead to the same outputs.
- Specify -> Operate -> Evaluate: The value loop stays visible; every execution is traceable back to intent and forward to evaluation.
- Governed collaboration: Humans and AI follow the same rules for proposing, approving, and implementing change.