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Kotlin Multiplatform Academy · Lesson

Use Cases & Domain Boundaries

Keep business rules independent and testable.

Rules Deserve a Home

Business rules scattered across screens drift and duplicate. Giving each rule its own use case creates one trusted place for important logic to live.

What a Use Case Is

A use case captures one app action, like place an order or refresh the feed. It reads as a verb and does exactly that one meaningful thing.

All lessons in this course

  1. Layered Architecture for KMP
  2. Use Cases & Domain Boundaries
  3. Split Shared Code into Modules
  4. Decide What Stays Native
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