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BMAD-METHOD/src/modules/bmm/workflows/3-solutioning/README.md
2025-10-17 19:46:25 -05:00

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# Solution Architecture Workflow
**Status:** Production-Ready | Scale-Adaptive Architecture Generation
---
## Overview
This workflow generates comprehensive, scale-adaptive solution architecture documentation tailored to your project type, technology stack, and scale level (0-4).
**Unique Features:**
-**Scale-adaptive**: Level 0 = skip, Levels 1-4 = progressive depth
-**Intent-based**: LLM intelligence over prescriptive lists
-**Template-driven**: 11 adaptive architecture document templates
-**Game-aware**: Adapts heavily based on game type (RPG, Puzzle, Shooter, etc.)
-**GDD/PRD aware**: Uses Game Design Doc for games, PRD for everything else
-**ADR tracking**: Separate Architecture Decision Records document
-**Simplified structure**: ~11 core project types with consistent naming
---
## When to Use
Run this workflow **AFTER** completing:
| Prerequisite | Required For | Location |
| -------------------------- | ----------------------------- | -------------------------------- |
| **plan-project workflow** | All projects | `/docs/bmm-workflow-status.md` |
| **PRD with epics/stories** | Level 1+ projects | `/docs/PRD.md` |
| **GDD (for games)** | Game projects | `/docs/GDD.md` or `/docs/PRD.md` |
| **UX Specification** | UI projects (web/mobile/game) | `/docs/ux-specification.md` |
---
## Quick Start
```bash
workflow solution-architecture
```
**The workflow will:**
1. Load `bmm-workflow-status.md` (from plan-project)
2. Check prerequisites (PRD/GDD, UX spec if needed)
3. Read requirements (PRD for apps, GDD for games)
4. Ask architecture pattern questions
5. Load appropriate template and guide
6. Generate architecture + ADR documents
7. Run cohesion check validation
---
## Outputs
### Primary Documents
| File | Purpose | Notes |
| --------------------------- | ------------------------------------ | --------------------------------------------------- |
| `solution-architecture.md` | Complete architecture document | Pattern-specific sections |
| `architecture-decisions.md` | Architecture Decision Records (ADRs) | Tracks all decisions, options considered, rationale |
### Validation Outputs
| File | Purpose |
| -------------------------- | ----------------------------------- |
| `cohesion-check-report.md` | Validates 100% FR/NFR/Epic coverage |
| `epic-alignment-matrix.md` | Maps epics → components/tech/APIs |
---
## Project Types and Templates
### Simplified Project Type System
The workflow uses ~11 core project types that cover 99% of software projects:
| Type | Name | Template | Instructions |
| ------------------ | ------------------------ | -------------------------- | ------------------------------ |
| **web** | Web Application | web-template.md | web-instructions.md |
| **mobile** | Mobile Application | mobile-template.md | mobile-instructions.md |
| **game** | Game Development | game-template.md | game-instructions.md |
| **backend** | Backend Service | backend-template.md | backend-instructions.md |
| **data** | Data Pipeline | data-template.md | data-instructions.md |
| **cli** | CLI Tool | cli-template.md | cli-instructions.md |
| **library** | Library/SDK | library-template.md | library-instructions.md |
| **desktop** | Desktop Application | desktop-template.md | desktop-instructions.md |
| **embedded** | Embedded System | embedded-template.md | embedded-instructions.md |
| **extension** | Browser/Editor Extension | extension-template.md | extension-instructions.md |
| **infrastructure** | Infrastructure | infrastructure-template.md | infrastructure-instructions.md |
### Intent-Based Architecture
Instead of maintaining 171 prescriptive technology combinations, the workflow now:
- **Leverages LLM intelligence** to understand project requirements
- **Adapts templates dynamically** based on actual needs
- **Uses intent-based instructions** rather than prescriptive checklists
- **Allows for emerging technologies** without constant updates
Each project type has:
- **Instruction file**: Intent-based guidance for architecture decisions
- **Template file**: Adaptive starting point for the architecture document
---
## Architecture Flow
### Step 0: Prerequisites and Scale Check
Load `bmm-workflow-status.md`:
- Extract: `project_level` (0-4), `project_type` (web/game/mobile/etc.), `field_type` (greenfield/brownfield)
- Validate: PRD exists, UX spec exists (if UI project)
- **Skip if Level 0** (single atomic change)
### Step 1: Requirements Analysis
**For Games:**
- Read **GDD** (Game Design Document)
- Extract: gameplay mechanics, engine (Unity/Godot/etc.), platform, multiplayer
**For Everything Else:**
- Read **PRD** (Product Requirements Document)
- Extract: FRs, NFRs, epics, stories, integrations
**For UI Projects:**
- Read **UX Specification**
- Extract: screens, flows, component patterns
### Step 2: User Skill Level
Ask user: Beginner / Intermediate / Expert
- Affects verbosity of generated architecture
### Step 3: Architecture Pattern
Determine:
- Architecture style (monolith, microservices, serverless, etc.)
- Repository strategy (monorepo, polyrepo, hybrid)
- Pattern-specific choices (SSR for web, native vs cross-platform for mobile)
### Step 4: Epic Analysis
Analyze PRD epics:
- Identify component boundaries
- Map domain capabilities
- Determine service boundaries (if microservices)
### Step 5: Intent-Based Technical Decisions
Load: `project-types/{project_type}-instructions.md`
- Use intent-based guidance, not prescriptive lists
- Allow LLM intelligence to identify relevant decisions
- Consider emerging technologies naturally
### Step 6: Adaptive Template Selection
**6.1: Simple Template Selection**
```
Based on project_type from analysis:
web → web-template.md
mobile → mobile-template.md
game → game-template.md (adapts heavily by game type)
backend → backend-template.md
... (consistent naming pattern)
```
**6.2: Load Template**
```
Read: project-types/{type}-template.md
Example: project-types/game-template.md
Templates are adaptive starting points:
- Standard sections (exec summary, tech stack, data arch, etc.)
- Pattern-specific sections conditionally included
- All {{placeholders}} to fill based on requirements
```
**6.3: Dynamic Adaptation**
Templates adapt based on:
- Actual project requirements from PRD/GDD
- User skill level (beginner/intermediate/expert)
- Specific technology choices made
- Game type for game projects (RPG, Puzzle, Shooter, etc.)
**Example Flow for Unity RPG:**
1. GDD says "Unity 2022 LTS" and "RPG"
2. Load game-template.md and game-instructions.md
3. Template adapts to include RPG-specific sections (inventory, quests, dialogue)
4. Instructions guide Unity-specific decisions (MonoBehaviour vs ECS, etc.)
5. LLM intelligence fills gaps not in any list
6. Generate optimized `solution-architecture.md` + `architecture-decisions.md`
### Step 7: Cohesion Check
Validate architecture quality:
- 100% FR/NFR/Epic/Story coverage
- Technology table has specific versions
- No vagueness ("a library", "some framework")
- Design-level only (no implementation code)
- Generate Epic Alignment Matrix
---
## File Structure
```
/solution-architecture/
├── README.md # This file
├── workflow.yaml # Workflow configuration
├── instructions.md # Main workflow logic
├── checklist.md # Validation checklist
├── ADR-template.md # ADR document template
└── project-types/ # All project type files in one folder
├── project-types.csv # Simple 2-column mapping (type, name)
├── web-instructions.md # Intent-based guidance for web projects
├── web-template.md # Adaptive web architecture template
├── mobile-instructions.md # Intent-based guidance for mobile
├── mobile-template.md # Adaptive mobile architecture template
├── game-instructions.md # Intent-based guidance (adapts by game type)
├── game-template.md # Highly adaptive game architecture template
├── backend-instructions.md # Intent-based guidance for backend services
├── backend-template.md # Adaptive backend architecture template
├── data-instructions.md # Intent-based guidance for data pipelines
├── data-template.md # Adaptive data pipeline template
├── cli-instructions.md # Intent-based guidance for CLI tools
├── cli-template.md # Adaptive CLI architecture template
├── library-instructions.md # Intent-based guidance for libraries/SDKs
├── library-template.md # Adaptive library architecture template
├── desktop-instructions.md # Intent-based guidance for desktop apps
├── desktop-template.md # Adaptive desktop architecture template
├── embedded-instructions.md # Intent-based guidance for embedded systems
├── embedded-template.md # Adaptive embedded architecture template
├── extension-instructions.md # Intent-based guidance for extensions
├── extension-template.md # Adaptive extension architecture template
├── infrastructure-instructions.md # Intent-based guidance for infra
└── infrastructure-template.md # Adaptive infrastructure template
```
---
## Template System
### Complete, Standalone Templates
Each template in `templates/` is a **complete** architecture document structure:
**Standard Sections (all templates):**
1. Executive Summary
2. Technology Stack and Decisions (required table)
3. Architecture Overview
4. Repository and Service Strategy
5. Data Architecture
6. Component and Integration Overview
7-N. **Pattern-Specific Sections** (varies by template)
N+1. Proposed Source Tree
N+2. Getting Started (Human Setup)
N+3. Implementation Patterns and Conventions (Agent Guidance)
N+4. Testing Strategy
N+5. Deployment and Operations
N+6. Security
N+7. Specialist Sections
**Pattern-Specific Sections Examples:**
**Game Engine Template:**
- Gameplay Systems (player controller, game state)
- Scene Architecture
- Asset Pipeline
- Audio Architecture
- Save System
- Multiplayer Architecture (if applicable)
**Web Fullstack Template:**
- Frontend Architecture
- Backend Architecture
- API Design (REST/GraphQL/tRPC)
- State Management
- SSR/Caching Strategy
- Performance Optimization
**Embedded Firmware Template:**
- Hardware Architecture
- Communication Protocols
- Power Management
- Sensor/Actuator Integration
- OTA Update Strategy
---
## ADR Tracking
Architecture Decision Records are maintained separately in `architecture-decisions.md`.
**ADR Format:**
```markdown
### ADR-001: [Decision Title]
**Date:** YYYY-MM-DD
**Status:** Accepted | Rejected | Superseded
**Decider:** User | Agent | Collaborative
**Context:**
What problem are we solving?
**Options Considered:**
1. Option A - pros/cons
2. Option B - pros/cons
3. Option C - pros/cons
**Decision:**
We chose Option X
**Rationale:**
Why we chose this over others
**Consequences:**
- Positive: ...
- Negative: ...
**Rejected Options:**
- Option A rejected because: ...
```
**ADRs are populated throughout the workflow** as decisions are made:
- Step 3: Architecture pattern ADR
- Step 5: Technology selection ADRs
- Step 6: Engine-specific ADRs (from guide)
---
## Scale-Adaptive Behavior
| Level | Project Size | Architecture Depth | Specialist Sections |
| ----- | -------------------------------- | --------------------------- | -------------------------- |
| **0** | Single task | Skip architecture | N/A |
| **1** | Small feature (1-10 stories) | Lightweight, essential only | Inline guidance |
| **2** | Small project (5-15 stories) | Standard depth | Inline guidance |
| **3** | Standard project (12-40 stories) | Comprehensive | Specialist placeholders |
| **4** | Ambitious product (40+ stories) | Comprehensive + specialists | Specialist recommendations |
---
## Specialist Integration
Pattern-specific specialists are recommended based on project characteristics:
**Game Projects:**
- Audio Designer (music, SFX, adaptive audio)
- Performance Optimizer (profiling, optimization)
- Multiplayer Architect (netcode, state sync)
- Monetization Specialist (IAP, ads, economy)
**Web Projects:**
- Frontend Architect (component design, state management)
- Backend Architect (API design, microservices)
- DevOps Specialist (CI/CD, deployment)
- Security Specialist (auth, authorization, secrets)
**Embedded Projects:**
- Hardware Integration (sensors, actuators, protocols)
- Power Management (battery, sleep modes)
- RF/Wireless (WiFi, BLE, LoRa)
- Safety Certification (if required)
Specialists are documented with:
- When they're needed
- What they're responsible for
- How they integrate with the workflow
---
## Key Differences from Legacy HLA Workflow
| Aspect | Legacy HLA | New Solution Architecture |
| ------------------- | --------------- | ----------------------------------------- |
| **Templates** | Fixed structure | 11 complete templates, pattern-specific |
| **Tech Selection** | Manual | 171 pre-defined combinations |
| **Engine Guidance** | Generic | Engine-specific guides (Unity/Godot/etc.) |
| **ADRs** | Inline | Separate document |
| **GDD Support** | No | Yes, for game projects |
| **Guides** | None | Pattern-specific workflow guidance |
| **Scale** | One size | Adaptive Levels 0-4 |
---
## Validation and Quality Gates
### Cohesion Check (Step 7)
**Validates:**
- ✅ 100% FR coverage (or gaps documented)
- ✅ 100% NFR coverage (or gaps documented)
- ✅ Every epic has technical foundation
- ✅ Every story can be implemented with current architecture
- ✅ Technology table complete with specific versions
- ✅ No vagueness detected
- ✅ Design-level only (no over-implementation)
**Outputs:**
- `cohesion-check-report.md` - Pass/fail with detailed gaps
- `epic-alignment-matrix.md` - Mapping validation
**If cohesion check fails:**
- Document gaps
- Update architecture
- Re-run check
---
## Getting Started for Implementers
### For Games:
1. Run `workflow plan-project` → Create GDD
2. Specify engine in GDD (Unity/Godot/Phaser/etc.)
3. Run `workflow solution-architecture`
4. System detects engine from GDD
5. Loads game-engine template + engine-specific guide
6. Generates Unity/Godot/Phaser-specific architecture
### For Web Apps:
1. Run `workflow plan-project` → Create PRD
2. Run `workflow ux-spec` → Create UX spec
3. Run `workflow solution-architecture`
4. Answer: SSR or SPA? Monolith or microservices?
5. System loads web-fullstack template
6. Generates framework-specific architecture
### For Other Projects:
1. Run `workflow plan-project` → Create PRD
2. Run `workflow solution-architecture`
3. Answer project-type questions
4. System loads appropriate template
5. Generates pattern-specific architecture
---
## Extending the System
### Adding a New Project Type
1. Add row to `project-types/project-types.csv` (just type and name)
2. Create `project-types/{type}-instructions.md` with intent-based guidance
3. Create `project-types/{type}-template.md` with adaptive template
4. Update instructions.md if special handling needed (like GDD for games)
### Key Principles
- **Intent over prescription**: Guide decisions, don't list every option
- **Leverage LLM intelligence**: Trust the model to know technologies
- **Adaptive templates**: Templates should adapt to project needs
- **Consistent naming**: Always use {type}-instructions.md and {type}-template.md
---
## Questions?
- **Validation:** See `checklist.md`
- **Workflow Logic:** See `instructions.md`
- **Configuration:** See `workflow.yaml`
- **Project Types:** See `project-types/project-types.csv`
- **Example Template:** See `project-types/game-template.md`
---
_This workflow replaces the legacy HLA workflow with a modern, scale-adaptive, pattern-aware architecture generation system._