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Technical Design Specifications

1. Introduction​

Brief overview of what this document covers.

1.1 Purpose​

State why this TDS was created and what it aims to achieve.

1.2 Scope​

Detail the breadth of the design – which parts of the system are covered and which aren't.

1.3 Definitions, Acronyms, and Abbreviations​

List any terms that are used in a specific way in this document.

2. System Architecture​

2.1 Overview​

High-level diagram and description of the whole system or feature.

2.2 Component Details​

Breakdown of individual components, their responsibilities, and interactions.

3. Infrastructure Requirements​

3.1 Implementation Requirements for Azure System Setup​

Detailed breakdown of the required updates to the system to support the feature

3.2 Rationale Behind Choices​

Justifications for the choices made (including other options considered if applicable)

3.3 Recommendations, Concerns, Considerations​

4. Data Design​

4.1 Dataflow Diagram​

Show how data moves through the system.

4.2 Data Dictionary​

Detail the structure of the data, e.g., database schema, data types, constraints.

5. Interface Design​

5.1 External Interfaces​

Detail APIs, SDKs, or other interfaces that communicate with external systems.

5.2 Internal Interfaces​

Detail the interfaces between internal components.

5.3 User Interfaces (if applicable)​

Screenshots/mockups and descriptions of any user interfaces.

6. Algorithm Design​

Describe any algorithms or logic flows (in pseudocode or flow diagrams).

7. Security Considerations​

Discuss authentication, authorization, encryption, and other security concerns.

8. Scalability and Performance​

8.1 Monitoring and Metrics​

What metrics will be considered as KPIs and why?

8.2 Tracing and Observability​

Explanation of what kind of tracing should be included if relevant for detailed monitoring explained above.

9. Error Handling​

Detail how errors and exceptions are handled, logged, and potentially surfaced.

10. Testing Plans, Behaviors, and Considerations​

Discuss what needs special attention in testing, and potential challenges.

11. Dependencies​

List any dependencies, libraries, or frameworks needed.

12. Deployment and Rollout Plan​

12.1 Feature Flagging​

Discuss how features will be controlled and gradually rolled out.

12.2 Deployment Steps​

Detail the steps for deploying the system or feature, including any rollback procedures.

12.3 Forecasts​

Discuss expected growth, usage, or other metrics that might influence the rollout.

13. Future Considerations​

Describe aspects not covered in the current design but may be relevant in the future.

14. Appendices​

Include any supplementary material, references, or further readings.