How the Member Eligibility reference implementation was engineered
Seven engineering journals record how the Member Eligibility reference implementation was built: contract-first backend generation, Salesforce integration, architecture packaging, UI refinement, live validation, and the cross-journal lessons that emerged.
- AI-assisted engineering
- API design
- Systems integration
- Validation
- Salesforce
The Member Eligibility reference implementation was delivered with seven engineering journals in its repository. Together they record generation inputs, architectural decisions, actual validation, defects, corrections, assumptions, and reusable lessons. This entry summarizes each journal and links to the source entries at the reviewed commit rather than duplicating their full content.
Backend implementation
FastAPI backend generation
Records the contract-driven backend structure, requirement traceability, and the original 19-test validation. Contract-alignment tests caught incorrect required-field behavior for nullable coverage data and removed an inaccurate generated 422 response.
Salesforce integration
Salesforce integration generation
Documents the Lightning Web Component, Apex controller and integration service, contract-shaped wrappers, Named Credential guidance, Salesforce deployment, Apex test execution, LWC Jest execution, architecture decisions, and resolved defects. It also distinguishes metadata-only, connected-validation, and deployment evidence.
Salesforce UI polish
Explains how the existing working component was refined into a clearer Provider Relations experience without altering the integration architecture. It records state presentation, accessibility improvements, Salesforce application packaging, and the single live eligible end-to-end validation.
Architecture and validation
Architecture documentation packaging
Describes how technical architecture evidence was simplified for executive and website use, which validation claims were retained, and which claims were excluded because evidence did not support them.
Sequence diagram
Records the decisions behind the runtime sequence view, including success, member-not-found, and technical-failure branches and the explicit FastAPI business-logic boundary.
Deployment diagram
Records the actual Version 1 runtime boundaries: Salesforce Cloud, HTTPS communication, and a local developer-machine backend using synthetic JSON. It excludes invented production infrastructure.
Productization and lessons learned
README productization
Explains how the repository landing page was structured for technical leaders, which business and validation claims were included, which unsupported claims were omitted, and how scope constraints were made visible.
Cross-journal findings
- Contract-first development provided a stable integration boundary.
- Real execution found issues that static review did not.
- Eligibility logic remained isolated in the backend.
- Salesforce deployment and testing required explicit environment authorization.
- User-interface refinement improved demonstration quality without changing architecture.
- Validation language is most credible when it states evidence type and limitations.
- Reusable prompts and skills capture process knowledge beyond the application source.