Data Model Design

Design data models that correctly represent business domains and support required queries efficiently.

Context

You are modeling a business domain in a database. The data model must reflect business semantics and perform well.

Domain Context

Based on relational theory and domain-driven design:

• Entities: Things with identity (User, Order)
• Attributes: Properties of entities (name, email)
• Relationships: How entities connect (User has many Orders)
• Normalization: Reduce redundancy; improves write performance
• Denormalization: Intentionally duplicate data; improves read performance

Instructions