Data Modeling & Schema Design

Good data models reduce bugs and make your system easier to extend. Modeling entities, relationships, and constraints early avoids painful migrations later.

Starting points

• Relational modeling & normalization
• ER diagrams (intro)
• NoSQL data modeling

Key Points

• Entities, relationships, and constraints (unique, not null, FK) have been captured.
• Read/write access patterns were considered before finalizing the model.
• Names reflect the domain language (ubiquitous language).

Page Info

• Version 1.0
• Last updated: 30.09.2025
• Updated by: GS