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An Architecture Decision Record (ADR) captures context, considered options, and consequences for architecturally significant decisions. You need to create an ADR to establish an immutable, audit-friendly rationale trail for governance and future maintenance.

You document architectural design decisions by creating structured ADRs with standardized IDs, rationale, and explicit consequences. This ensures traceability by logging decisions and enforcing a workflow where later work supersedes old ADRs via bidirectional linking.

To update an existing architecture decision, you create a new ADR that supersedes the old one rather than editing it. This immutability workflow enforces governance by maintaining an audit-friendly rationale trail with bidirectional links between records.

ADRs help multiple teams align on cross-project architecture decisions by providing a standardized structure for documenting forces and trade-offs. This establishes consistent governance, traceability, and a shared rationale reference for future maintenance.

The best way to structure architecture documentation for audit readiness is using standardized ADR files. This enforces immutability of accepted decisions, consistent numbering, and explicit documentation of context, options, and consequences.

You should not edit an accepted architecture decision record directly because ADRs enforce immutability to ensure audit-friendly governance. Instead, you supersede old ADRs by creating new records with bidirectional links, preserving the original rationale trail.