How well can you create and interpret diagrams for system design?

Creating and interpreting diagrams for system design is an important skill, especially in Android development. UML diagrams (such as class, sequence, and state diagrams) are commonly used to visualize architecture and component interactions.

A good understanding of diagrams helps to:

• Clearly represent the structure of the application and relationships between modules.
• Discuss architectural decisions with the team.
• Simplify maintenance and extension of the code.

For example: a class diagram can show how an Activity interacts with ViewModel and Repository, while a sequence diagram illustrates how data loading and UI updates occur.

It is important not only to create diagrams but also to read them quickly to understand the system's logic and identify potential bottlenecks.