My-Weekly-ToDo-List/.planning/research/PITFALLS.md
mARTin 408ed9082d docs: complete project research
Files:
- STACK.md
- FEATURES.md
- ARCHITECTURE.md
- PITFALLS.md
- SUMMARY.md

Key findings:
- Stack: React, Node.js, PostgreSQL, Prisma
- Architecture: Layered with clear component boundaries
- Critical pitfall: Inconsistent calendar sync behavior
2026-01-24 18:30:02 +01:00

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Markdown

# Domain Pitfalls
**Domain:** Weekly Task Management Application
**Researched:** January 24, 2026
## Critical Pitfalls
Mistakes that cause rewrites or major issues.
### Pitfall 1: Inconsistent Calendar Sync Behavior
**What goes wrong:** Calendar synchronization behaves differently for Google vs Apple calendars, causing data discrepancies and user frustration.
**Why it happens:** Lack of standardized sync protocols and inconsistent handling of calendar event properties.
**Consequences:** Users lose trust in the application, data integrity issues, support burden.
**Prevention:** Implement a unified calendar abstraction layer that normalizes event properties across providers.
**Detection:** Monitor user complaints about missing events, duplicate events, or incorrect time placements.
### Pitfall 2: Poor Drag-and-Drop Performance
**What goes wrong:** Drag-and-drop operations lag or feel unresponsive, especially with many tasks.
**Why it happens:** Inefficient DOM manipulation or blocking UI updates during drag operations.
**Consequences:** Frustrated users, perception of application slowness, abandonment.
**Prevention:** Implement virtual scrolling, optimize DOM updates, use CSS transitions for smooth animations.
**Detection:** User testing feedback, performance monitoring tools, analytics on drag operation duration.
### Pitfall 3: Data Loss Due to Local Storage Issues
**What goes wrong:** User data is lost when browser cache is cleared or localStorage becomes corrupted.
**Why it happens:** Relying solely on client-side storage without backup mechanisms.
**Consequences:** User frustration, loss of trust, potential product abandonment.
**Prevention:** Implement data backup strategies and provide export/import functionality.
**Detection:** User reports of lost data, monitoring of localStorage errors.
## Moderate Pitfalls
Mistakes that cause delays or technical debt.
### Pitfall 1: Overcomplicating the UI
**What goes wrong:** Adding too many features or complex interfaces that overwhelm users.
**Prevention:** Stick to minimal viable product principles, conduct regular user testing.
### Pitfall 2: Inadequate Error Handling
**What goes wrong:** Application crashes or freezes when encountering unexpected inputs or network issues.
**Prevention:** Implement comprehensive error boundaries and graceful degradation strategies.
## Minor Pitfalls
Mistakes that cause annoyance but are fixable.
### Pitfall 1: Inconsistent Time Zone Handling
**What goes wrong:** Tasks display in incorrect time zones when users travel or have mixed time zone calendars.
**Prevention:** Implement robust time zone handling with clear user preferences.
### Pitfall 2: Poor Responsive Design
**What goes wrong:** Application doesn't work well on mobile devices or smaller screens.
**Prevention:** Design with mobile-first approach and test across multiple screen sizes.
## Phase-Specific Warnings
| Phase Topic | Likely Pitfall | Mitigation |
|-------------|---------------|------------|
| Frontend Development | Component architecture becomes unwieldy | Plan component structure early, establish clear component boundaries |
| Backend API Design | Inflexible API endpoints | Design flexible, extensible API from start, version when changes necessary |
| Database Implementation | Schema changes cause downtime | Plan database migrations carefully, use versioned schema management |
| Calendar Integration | OAuth token expiration issues | Implement automatic refresh mechanisms and clear error handling |
| User Testing | Insufficient user feedback loop | Establish regular user interviews and feedback collection mechanisms |
## Sources
- Post-mortems from popular task management applications
- Issue discussions in open-source task management projects
- Community feedback on productivity tools
- UX research on calendar integration challenges
- Developer forums discussing web application performance bottlenecks