Architecture Solution Design

Attribute	Value
Project	[Project Name]
Version	0.1
Status	Draft

Table of Contents

• System Context
• Architectural Approach
• Component Design
• Data Flow
• Integration Points
• Observability
• Deployment Impact
• Security Considerations
• Scalability Considerations
• Trade-offs and Alternatives
• ADR Reference
• Source References

System Context

[Describe the system boundary: who/what interacts with it (users, external systems) and what the system is responsible for. A C4 Level-1 mermaid diagram fits here.]

Architectural Approach

[Name the selected architecture style and summarize why it fits. Link the full evaluation in architecture-styles.md.]

Key Design Principles

• [Principle 1, e.g. layered boundaries with dependency direction enforced.]
• [Principle 2, e.g. domain logic isolated from framework and infrastructure code.]
• [Principle 3, e.g. explicit contracts between components.]

Component Design

[Describe each component/module, its responsibility, and its interfaces. Extend the diagram as components are defined.]

Data Flow

[Walk through the primary end-to-end flows (e.g. the main user workflow) across components. Sequence diagrams live in ../diagrams/sequence-diagrams.md; keep this to a representative flow.]

Integration Points

Integration	Type	Direction	Notes
[External service]	[REST/Webhook/Queue]	[Inbound/Outbound]	[Auth and failure expectations]

Observability

[How errors, traces, and metrics flow out of the system. Reference the monitoring doc and the relevant ADR once chosen.]

• [Error tracking approach.]
• [Key signals to monitor.]
• [Alerting expectations.]

Deployment Impact

[How this design constrains or shapes deployment, e.g. single deployable unit vs. multiple services, migration ordering. Reference ops docs.]

Security Considerations

[Top-level security properties this design must preserve. Link the security architecture doc for detail.]

Scalability Considerations

[Expected load (reference performance/scalability NFRs) and how the design accommodates growth without rework.]

Trade-offs and Alternatives

Option	Pros	Cons	Verdict
[Chosen option]	[Pros]	[Cons]	Selected
[Alternative]	[Pros]	[Cons]	Rejected — [reason]

ADR Reference

• ADR-xxx: High-Level Architecture Pattern — link once created

Source References

• Architecture Styles
• Technology Stack
• Feature Requirements

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Last Updated: YYYY-MM-DD