# Step 3 -- Architecture and Decision Records

## Goal

Document choices before they become accidental standards.

For each component capture: purpose, Microsoft-supported approach,
proposed default, configurable choices, licensing, permissions, IaC
support, manual steps, validation, owner, and exceptions.

## ADR Starter

``` markdown
# Decision: <title>
Status: Proposed | Accepted | Superseded
Date:
Owner:

## Context
## Options
## Decision
## Why
## Exceptions
## Validation
## References
```

## Early Decisions

-   Bicep as primary IaC.
-   Native connectors preferred.
-   DCR transformation strategy.
-   ASIM strategy.
-   Retention strategy.
-   Naming/tags.
-   Managed identities.
-   RBAC.
-   Portal-change policy.
-   Analytics/content ownership.
-   Customer-managed vs MSSP-managed deployment.

Keep uncertain choices marked **Proposed** until tested and reviewed.