The Legacy You're Creating

Every system built today becomes tomorrow's legacy. Government platforms from 2015 now struggle with unanticipated demands: AI integration, real-time processing, omnichannel delivery, API ecosystems. The systems you build today face similar uncertainty—technology and citizen expectations will evolve unpredictably.

The goal isn't predicting the future. It's building systems that can adapt to futures you can't predict.

Principle 1: Separate Concerns Aggressively

Tangled presentation, business logic, and data layers resist evolution. When changing the UI requires modifying business rules which requires database changes, everything becomes expensive and risky. Separated concerns enable independent evolution of each layer.

Principle 2: API-First, Always

Build everything as APIs, even with only one current consumer. Clean boundaries allow independent evolution. APIs require versioning and documentation from inception—retrofitting these is painful. Today's internal API is tomorrow's ecosystem integration point.

Principle 3: Embrace Managed Services

Cloud databases, identity platforms, API gateways—managed services exceed what any single government can maintain. Custom infrastructure becomes liability as teams turn over and expertise leaves. Focus custom development on genuinely unique government needs.

Principle 4: Make Data Portable

Data outlives systems. Ensure you can extract everything: standard formats, documented schemas, clean data governance. Systems that trap data become prisons preventing migration to better solutions.

Principle 5: Plan for AI Integration

Structure data for AI consumption. Enable event streams for real-time processing. Build human-in-the-loop interfaces. Create audit infrastructure for AI decision logging. The AI capabilities of 2030 will want access to your data—make that possible.

Principle 6: Document Decisions, Not Just Code

Capture architecture decision records explaining why choices were made. Document design rationale, not just implementation. Create runbooks and onboarding guides. The people maintaining these systems in 2030 weren't in the room when you made decisions—help them understand.

The Mindset

Assume change. Design for evolution, not permanence. Embrace eventual replacement as natural lifecycle. Prioritize foundational infrastructure over features. Think in decades when making architectural decisions.

The best time to plan for replacement was when you built the system. The second best time is now.