ERD

When your data architects walk through an Entity-Relationship Diagram during a design review or onboarding session, a significant amount of context gets shared verbally — why certain relationships were modeled the way they were, which entities went through multiple iterations, and what constraints shaped the final structure. That reasoning rarely makes it into the diagram itself.

The problem with relying on recorded sessions is that an ERD explanation buried in a 45-minute architecture walkthrough is effectively invisible. When a new data engineer joins your team six months later and needs to understand why a particular entity was normalized the way it was, they face the choice of scrubbing through recordings or asking someone who may no longer remember the details.

Converting those recordings into structured documentation changes how your team interacts with that knowledge. Instead of a timestamp, you get a searchable reference that captures the decisions behind your ERD — the cardinality choices, the relationship logic, the trade-offs discussed. For example, if your team debated whether to model user permissions as a separate entity or embed them directly, that discussion becomes a documented design note rather than a forgotten conversation.

If your team regularly reviews or updates ERDs through recorded sessions, turning those recordings into searchable documentation can make that institutional knowledge genuinely reusable.