BMAD-METHOD/docs/how-to/workflows/run-test-design.md

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---
title: "How to Run Test Design"
description: How to create comprehensive test plans using TEA's test-design workflow
---
Use TEA's `*test-design` workflow to create comprehensive test plans with risk assessment and coverage strategies.
## When to Use This
**System-level (Phase 3):**
- After architecture is complete
- Before implementation-readiness gate
- To validate architecture testability
**Epic-level (Phase 4):**
- At the start of each epic
- Before implementing stories in the epic
- To identify epic-specific testing needs
:::note[Prerequisites]
- BMad Method installed
- TEA agent available
- For system-level: Architecture document complete
- For epic-level: Epic defined with stories
:::
## Steps
### 1. Load the TEA Agent
Start a fresh chat and load the TEA (Test Architect) agent.
### 2. Run the Test Design Workflow
```
*test-design
```
### 3. Specify the Mode
TEA will ask if you want:
- **System-level** — For architecture testability review (Phase 3)
- **Epic-level** — For epic-specific test planning (Phase 4)
### 4. Provide Context
For system-level:
- Point to your architecture document
- Reference any ADRs (Architecture Decision Records)
For epic-level:
- Specify which epic you're planning
- Reference the epic file with stories
### 5. Review the Output
TEA generates a comprehensive test design document.
## What You Get
**System-Level Output (`test-design-system.md`):**
- Testability review of architecture
- ADR → test mapping
- Architecturally Significant Requirements (ASRs)
- Environment needs
- Test infrastructure recommendations
**Epic-Level Output (`test-design-epic-N.md`):**
- Risk assessment for the epic
- Test priorities
- Coverage plan
- Regression hotspots (for brownfield)
- Integration risks
- Mitigation strategies
## Test Design for Different Tracks
| Track | Phase 3 Focus | Phase 4 Focus |
|-------|---------------|---------------|
| **Greenfield** | System-level testability review | Per-epic risk assessment and test plan |
| **Brownfield** | System-level + existing test baseline | Regression hotspots, integration risks |
| **Enterprise** | Compliance-aware testability | Security/performance/compliance focus |
## Tips
- **Run system-level right after architecture** — Early testability review
- **Run epic-level at the start of each epic** — Targeted test planning
- **Update if ADRs change** — Keep test design aligned
- **Use output to guide other workflows** — Feeds into `*atdd` and `*automate`
## Next Steps
After test design:
1. **Setup Test Framework** — If not already configured
2. **Implementation Readiness** — System-level feeds into gate check
3. **Story Implementation** — Epic-level guides testing during dev