domains / families / software-engineering / projection-patterns

projection-patterns

authentic

Build read models and projections from event streams. Use when implementing CQRS read sides, building materialized views, or optimizing query performance in event-sourced systems.

When to use

• Building CQRS read models
• Creating materialized views from events
• Optimizing query performance
• Implementing real-time dashboards
• Building search indexes from events
• Aggregating data across streams

When not to use

• The task is unrelated to projection patterns
• You need a different domain or tool outside this scope

Skill page

Source