Engineering Knowledge

Architecture Decision Records

Architecture Decision Records document the reasoning behind important engineering choices. They explain not only what was selected, but why it was selected, what alternatives were considered, and what trade-offs were accepted.

Why ADRs Matter

Code shows what was built. Architecture explains how the system is organized. Architecture Decision Records preserve the judgment behind the decisions.

Every important engineering decision should be intentional, understandable, and explainable. These ADRs document the foundation of the Enterprise AI Customer Engagement Platform.

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ADR-001 — FastAPI

Selection of FastAPI as the backend framework for REST APIs, AI integration, validation, documentation, and cloud-native backend development.

Read ADR-001
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ADR-002 — PostgreSQL

Selection of PostgreSQL as the primary relational database for CRM data, appointments, SMS history, chat records, and future analytics.

Read ADR-002
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ADR-003 — OpenAI

Selection of OpenAI as the AI reasoning layer for conversational workflows, intent understanding, semantic extraction, and AI-assisted engagement.

Read ADR-003
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ADR-004 — Microsoft Azure

Planned documentation for cloud deployment, hosting strategy, scalability, CI/CD integration, and long-term platform evolution.

Coming Soon
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ADR-005 — Layered Architecture

Planned documentation for the layered enterprise architecture pattern used to separate business logic, APIs, AI services, persistence, and infrastructure.

Coming Soon
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Future ADRs

Additional decisions will document security, deployment, messaging, repository organization, documentation strategy, and future AI agent architecture.

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The Architect's Principle

A system becomes architecture when every design decision can be explained.
Great software is built with code. Great architecture is remembered through decisions.