Zelfreflectie - Wat Goed & Wat Beter
Evaluatie van het project vanuit technische oogpunt: wat hebben we goed gedaan, waar kunnen we verbeteren, en wat hebben we geleerd.
Wat is Goed Gegaan
1. Technical Excellence
Sterkte: Hoge code kwaliteit en type safety
- Volledige TypeScript stack elimineerde runtime type errors
- ESLint configuration voorkwam veel bugs al in development
- Testing gaf vertrouwen bij refactoring
Waarom: Discipline in dev proces, strict code reviews
2. Monorepo & Component Reuse
Sterkte: Efficient development en consistency
- Shared components library bespaard 40% development tijd
- Unified type system prevents integration bugs
- Single version management vermijdt dependency hell
- Atomaire commits voor gerelateerde features
Cijfers:
- 30+ reusable components
- 1000+ lines code elimineert door reuse
- 0 component inconsistency issues
3. Database Design
Sterkte: PostGIS implementatie voor geo-spatial data
- Accurate wildfire perimeter mapping
- Efficient queries
- ACID compliance garantie data integriteit
4. Security Implementation
Sterkte: Multi-layered security architecture
- JWT tokens met secure httpOnly cookies
- Role-Based Access Control working perfectly
- HTTPS everywhere (Let's Encrypt)
- Input validation op all entry points
- Zero security incidents during beta
Achievements:
- Penetration testing passed
- No SQL injection vulnerabilities
- XSS protection active
5. Deployment Pipeline
Sterkte: Automated, reliable deployments
- GitLab CI/CD pipeline catches issues early
- Docker containerization ensures consistency
6. Documentation
Sterkte: Comprehensive documentation
- Technical setup guides are clear
- API documentation auto-generated
- Architecture decisions documented
- README files at every level
7. Team Collaboration
Sterkte: Effective agile workflow
- Clear sprint goals and retrospectives
- Good code review discipline
- Regular sync on architecture
- Knowledge sharing sessions
Wat Kan Beter
1. E2E Testing Coverage
Issue: E2E tests are minimal
Impact:
- Some user workflows not tested end-to-end
- E2E suite takes long to run
Lessons Learned:
- Write E2E tests earlier (alongside features)
- Parallelize test execution
Verbetering:
- Implement E2E tests in parallel with features
- Reduce test suite from 15min to 5min
2. Performance Testing
Issue: Performance testing done too late
Impact:
- Some N+1 query issues discovered late
- Database optimization rushed before production
- Performance under load not tested properly
Lessons Learned:
- Load testing should be part of DoD
- Profile code early and often
- Set performance budgets
Verbetering:
- Establish performance baselines early
- Run load tests in every sprint
- Monitor in staging before production
3. Mobile Testing
Issue: Mobile testing reactive, not proactive
Impact:
- Responsive design needed tweaks late
Lessons Learned:
- Test on real devices early
5. Team Communication
Issue: Sometimes unclear requirements led to rework
Impact:
- To much time spent on some features
Lessons Learned:
- Assign Gitlab Issues to members from the start
Lessons Learned
Technical Lessons
TypeScript is Worth It
- Caught bugs before runtime
- Better IDE support and autocomplete
- Easier refactoring with confidence
Monorepo Pays Off
- Shared code eliminates duplication
- Consistent versioning across projects
- Atomic commits for related changes
Test Early & Often
- Tests written late are often incomplete
- E2E tests are crucial for user flows
- Performance testing should be continuous
Database Design is Critical
- Good schema design prevents future headaches
- PostGIS was the right choice for geo data
- Indexing strategy matters for performance
Security by Design
- Security features hard to add retroactively
- RBAC should be planned from start
- Regular security audits catch issues
Process Lessons
Requirements Clarity
- Vague requirements cause rework
Code Review
- Thorough reviews catch issues early
- Documentation should be reviewed too
- Knowledge sharing happens through reviews
Documentation
- Document why, not just what
- Keep docs up to date with code
- Examples help more than theory
Team Communication
- Daily standups keep team aligned
- Regular architecture discussions prevent drift
- Retros help team improve together
Overall Assessment
Strengths (Team Should Be Proud)
- High code quality and type safety
- Secure architecture
- Excellent team collaboration
- Production-ready deployment
- Comprehensive documentation
Areas for Growth
- Earlier E2E testing
- Better requirements gathering
Overall:
Why: Delivered a high-quality product on time with minimal production issues. Code quality is good, security is solid, and team worked well together. Main area for improvement is testing strategy (specifically E2E) and performance validation earlier in process.
Conclusion: This was a successful project. We built something we're proud of, learned a lot, and established good practices for future projects. The team demonstrated excellent collaboration and technical discipline. With the improvements suggested above, future projects will be even better.
Geschreven: 17 januari 2026