# Document Transcription System Overview (Current Baseline: V5.1)

This directory is the single source of truth for current V5.1 behavior and architecture.

## Canonical Reading Order

1. [System Architecture](architecture.md) for runtime topology, boundaries, and lifecycle ownership.
2. [System Requirements](requirements.md) for verifiable current-state requirements.
3. [Data Model](schema.md) for entities, constraints, and evidence persistence rules.
4. [Error Handling Policy](error_handling.md) for category, translation, and retry behavior.

## Cross-Version Invariants

- [Historical Document Transcription Design Intent](./invariant/intent.md)
- [Transcription Methodology](./invariant/transcription_methodology.md)
- [Error Handling](./invariant/error_handling.md)
- [Digital Evidence and AI Processing Provenance](./invariant/ai_evidence_and_provenance.md)
- [UI Style Guide](./invariant/ui_style_guide.md)

## Baseline Statement

The current V5.1 baseline includes behavior delivered through the architectural cleanup phases and person-schema redesign.
Use this `docs/*` canonical set for active design and implementation decisions.