Roadmap
16 weeks total — POC completed (Weeks 1-7) → MVP delivery (Weeks 8-15) → Handoff (Week 16).
Gantt Chart
Phase Breakdown
✅ POC Phase — Foundation (Weeks 1–2) — COMPLETED ✅
Completion Date: 2026-02-12
Goal: Establish the technical foundation — working Symfony project, Slack app, and Notion integration.
| Deliverable | Status | Completion Date |
|---|---|---|
| Symfony project scaffold + env config | ✅ Done | 2026-02-09 |
| Slack app registration + bot token | ✅ Done | 2026-02-09 |
| Notion database setup (3 databases) | ✅ Done | 2026-02-10 |
| VitePress docs site deployed | ✅ Done | 2026-02-11 |
.env.example with all variables | ✅ Done | 2026-02-09 |
Exit Criteria Achieved: symfony server:start works, Notion databases created, Slack app responds to events.
✅ POC Phase — Core Features (Weeks 3–7) — COMPLETED ✅
Completion Date: 2026-02-16
Goal: Deliver end-to-end Slack-Notion sync with live updates and populated knowledge base.
| Deliverable | Status | Completion Date | Notes |
|---|---|---|---|
| Slack message shortcut + modal UI | ✅ Done | 2026-02-14 | Full modal with Dutch UI |
| Resource persistence to Notion | ✅ Done | 2026-02-14 | Instant sync (<1s) |
| Thematic list CRUD | ✅ Done | 2026-02-14 | 10 categories created |
| Role label management | ✅ Done | 2026-02-15 | Target groups defined |
| Bidirectional sync (Slack↔Notion) | ✅ Done | 2026-02-16 | 2-min cron + instant push |
| Live tracking & refresh | ✅ Done | 2026-02-16 | View tracking service |
| Mock digest generation | ✅ Done | 2026-02-16 | Formatter ready for AI |
| Knowledge base populated | ✅ Done | 2026-02-15 | 10 categories, 13 items |
| Error handling (Dutch messages) | ✅ Done | 2026-02-16 | Port conflicts, API failures |
Exit Criteria Achieved: User submits from Slack → synced to Notion → view tracked → live refresh triggered → digest formatter ready.
Key Achievements:
- ⚡ Sub-second Slack→Notion sync
- 🔄 Automatic Notion→Slack sync (2-minute intervals)
- 📱 Live modal updates for open views
- 📊 Populated knowledge base with quality Dutch content
- 🛡️ Robust error handling with Dutch messages
🚧 MVP Phase 1 — Stability (Weeks 8–9) — IN PROGRESS 🚧
Target Dates: 2026-02-23 to 2026-03-07
Goal: Production-grade stability with proper caching, logging, and monitoring.
| Deliverable | Priority | Est. SP | Dependencies |
|---|---|---|---|
| Redis user tracking service | P0 | 5 | POC live tracking |
| Structured logging (Monolog) | P0 | 3 | Existing logs |
| Health check endpoints | P0 | 2 | Symfony setup |
| Error handling & retry logic | P0 | 4 | Existing error handlers |
| Graceful degradation | P1 | 2 | Error handling |
| Notion API rate limiting | P1 | 3 | API client |
Exit Criteria: System handles 100 concurrent users, failures are logged and recoverable, health endpoint returns 200.
📋 MVP Phase 2 — Performance (Weeks 10–11)
Target Dates: 2026-03-09 to 2026-03-21
Goal: Sub-second response times with caching and parallel processing.
| Deliverable | Priority | Est. SP | Dependencies |
|---|---|---|---|
| Response caching (Redis) | P0 | 4 | Redis setup |
| Parallel Notion API calls | P0 | 4 | Notion client |
| Queue system (Messenger) | P0 | 5 | Symfony Messenger |
| Database query optimization | P1 | 3 | Doctrine queries |
| Lazy loading for modals | P1 | 2 | Slack handlers |
Exit Criteria: Average response time < 500ms, modals load in < 1s, queue processes 100 jobs/min.
🎯 MVP Phase 3 — Features (Weeks 12–13)
Target Dates: 2026-03-23 to 2026-04-04
Goal: AI summaries, live digests, search, and URL ingestion.
| Deliverable | Priority | Est. SP | Dependencies |
|---|---|---|---|
| AI summary generation | P0 | 12 | AI provider config |
| Live digest scheduling | P0 | 8 | Mock digest formatter |
| Search & filtering | P0 | 8 | Existing categories |
| URL ingestion & extraction | P0 | 5 | Text ingestion |
| Notion webhook integration | P1 | 3 | Cron sync system |
| Multi-list assignment | P1 | 2 | List CRUD |
Exit Criteria: AI summaries generated, scheduled digests delivered, users can search resources, URLs auto-extract content.
✨ MVP Phase 4 — Polish (Weeks 14–15)
Target Dates: 2026-04-06 to 2026-04-18
Goal: Complete localization, onboarding, admin tools, and analytics.
| Deliverable | Priority | Est. SP | Dependencies |
|---|---|---|---|
| Dutch localization (complete) | P0 | 5 | Existing i18n |
| User onboarding flow | P1 | 4 | Slack app home |
| Admin dashboard | P1 | 5 | Backend API |
| Analytics & reporting | P1 | 4 | Database events |
| Permission system | P0 | 5 | Existing roles |
| Content moderation | P1 | 3 | Resource CRUD |
Exit Criteria: All UI in Dutch, new users guided through setup, admins can manage content, usage analytics available.
🎓 Handoff Phase (Week 16)
Target Dates: 2026-04-20 to 2026-04-27
Goal: Final testing, documentation, and production deployment.
| Deliverable | Priority | Est. SP |
|---|---|---|
| Final regression testing | P0 | — |
| Documentation completion | P0 | — |
| Production deployment | P0 | — |
| Knowledge transfer | P0 | — |
Exit Criteria: System deployed to production, all docs updated, Yappa team trained.
Milestones
| Milestone | Date | Status | Definition of Done |
|---|---|---|---|
| POC Complete | 2026-02-16 | ✅ Done | Bidirectional sync, live tracking, populated KB |
| MVP Core Stable | 2026-03-07 | 🚧 In Progress | Redis, logging, health checks, error handling |
| MVP Features Complete | 2026-04-04 | 📋 Planned | AI summaries, digests, search, URL ingestion |
| Production Ready | 2026-04-27 | 📋 Planned | All features complete, tested, documented |
POC Achievement Summary
Completed (2026-02-16):
- ✅ Slack to Notion sync (< 1 second)
- ✅ Notion to Slack sync (2-minute cron)
- ✅ Live modal updates for open views
- ✅ 10 categories with icons
- ✅ 13 knowledge items with Dutch content
- ✅ View tracking service
- ✅ Mock digest formatter
- ✅ Error handling with Dutch messages
- ✅ Port conflict resolution
Dependency Map
Legend: ✅ = Completed (POC) | 🚧 = In Progress (MVP Phase 1) | 📋 = Planned (MVP Phases 2-4)
Key Dependencies
| Feature | Depends On | Blocks |
|---|---|---|
| Redis User Tracking | POC Live Tracking | Response Caching |
| AI Summaries | AI Provider Config | Live Digests |
| Live Digests | Mock Digest Formatter | Search Enhancement |
| Search & Filtering | Category CRUD | Analytics |
| URL Ingestion | Text Ingestion | Digest Content |
| Notion Webhooks | Cron Sync System | Real-time Updates |
| Permissions | Role Labels | Admin Dashboard |
| Analytics | Resource CRUD | Reporting |
Technical Debt
Current Technical Debt (from POC)
| Item | Impact | Priority | Planned Resolution |
|---|---|---|---|
| Cron-based sync (2-min polling) | Not real-time, API waste | P1 | MVP Phase 3: Notion webhooks |
| In-memory view tracking | Lost on restart | P0 | MVP Phase 1: Redis persistence |
| No rate limiting | API quota risk | P0 | MVP Phase 1: Rate limiter |
| Manual port conflicts | Fragile startup | P1 | MVP Phase 1: Process management |
| Mock digest content | Not production-ready | P0 | MVP Phase 3: AI integration |
| No authentication | Anyone can access | P0 | MVP Phase 4: Permission system |
| Limited error recovery | Manual restart needed | P1 | MVP Phase 1: Auto-recovery |
Emerging Debt Risks
| Risk | Prevention |
|---|---|
| Code duplication between sync methods | Refactor to shared service class |
| Hardcoded Dutch strings | Extract to i18n system (MVP Phase 4) |
| Tight coupling to Notion API | Maintain abstraction layer |
| No automated tests | Add test suite in MVP Phase 1 |
| Missing API versioning | Document Notion API version dependencies |
Risk Timeline
| Week | Risk | Mitigation | Status |
|---|---|---|---|
| 1–2 | Slack API setup complexity | Start Slack app registration day 1; use Bolt for PHP | ✅ Mitigated |
| 3–4 | Notion API rate limits | Implement rate limiter; cache responses | 🚧 In Progress |
| 5–6 | AI provider latency / downtime | Async queue; graceful degradation | 📋 Planned |
| 7–8 | Digest formatting in Slack Block Kit | Prototype Block Kit layout early | ✅ Complete (mock) |
| 9–10 | Redis single point of failure | Document recovery procedures | 📋 Planned |
| 11–12 | Scope creep into PDF/audio | Strict phase gates; defer to post-MVP | 📋 Monitoring |
| 13–14 | Performance under load | Load testing before Phase 3 | 📋 Planned |
| 15–16 | Incomplete testing | Continuous testing from Phase 1; freeze at W15 | 📋 Planned |
Summary
Progress Overview
POC (Weeks 1-7) ████████████████████████████████████████████ 100% COMPLETE
MVP Phase 1 (W8-9) ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ 0% IN PROGRESS
MVP Phase 2 (W10-11) ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ 0% PLANNED
MVP Phase 3 (W12-13) ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ 0% PLANNED
MVP Phase 4 (W14-15) ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ 0% PLANNED
Handoff (W16) ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ 0% PLANNEDCurrent Focus (Week 8)
Starting MVP Phase 1: Stability
- Implement Redis for persistent user tracking
- Add structured logging with Monolog
- Create health check endpoints
- Implement retry logic and graceful degradation
- Add rate limiting for Notion API
Next 8 Weeks at a Glance
| Week | Phase | Key Deliverable |
|---|---|---|
| 8-9 | Stability | Redis, logging, health checks |
| 10-11 | Performance | Caching, queues, parallel processing |
| 12-13 | Features | AI summaries, digests, search |
| 14-15 | Polish | Localization, onboarding, analytics |
| 16 | Handoff | Testing, docs, deployment |
Completion Criteria
MVP Ready when:
- [ ] All POC items technical debt resolved
- [ ] Redis caching implemented (< 500ms responses)
- [ ] AI summaries generated successfully
- [ ] Scheduled digests delivered to Slack
- [ ] Search returns relevant results
- [ ] URLs auto-extract content
- [ ] All UI in Dutch
- [ ] Admin dashboard functional
- [ ] 100 concurrent users supported
- [ ] Production deployment successful