# Solution Draft

## Product Solution Description
[Short description of the proposed solution. Brief component interaction diagram.]

## Existing/Competitor Solutions Analysis
[Analysis of existing solutions for similar problems, if any.]

## Architecture

[Architecture solution that meets restrictions and acceptance criteria.]

### Component: [Component Name]

| Solution | Tools | Advantages | Limitations | Requirements | Security | Cost | Fit |
|----------|-------|-----------|-------------|-------------|----------|------|-----|
| [Option 1] | [lib/platform] | [pros] | [cons] | [reqs] | [security] | [cost] | [fit assessment] |
| [Option 2] | [lib/platform] | [pros] | [cons] | [reqs] | [security] | [cost] | [fit assessment] |

[Repeat per component]

## Testing Strategy

### Integration / Functional Tests
- [Test 1]
- [Test 2]

### Non-Functional Tests
- [Performance test 1]
- [Security test 1]

## References
[All cited source links]

## Related Artifacts
- Tech stack evaluation: `_docs/01_solution/tech_stack.md` (if Phase 3 was executed)
- Security analysis: `_docs/01_solution/security_analysis.md` (if Phase 4 was executed)