A state-machine diagram is usually developed for every class in the problem domain class diagram.Question 3Select one:True.False.

Understanding State-Machine Diagrams

1. Definition: A state-machine diagram is a type of behavioral diagram in UML (Unified Modeling Language) that represents the states of an object in response to events and actions.

2. Purpose: These diagrams help illustrate the lifecycle of an object throughout its existence, which is crucial in understanding how classes behave in various scenarios.

Analyzing the Statement

3. Statement Analysis: The statement suggests that every class in the problem domain should have a corresponding state-machine diagram.

4. Practical Implementation: While it is beneficial for complex classes to have state-machine diagrams to clarify state transitions and behaviors, it is not a universal requirement. Simple classes might not require such diagrams.

5. Conclusion: Thus, the statement is overly broad and does not hold true in all scenarios.

Final Answer

False – A state-machine diagram is not developed for every class in the problem domain class diagram; it is typically used where necessary to detail the object's states and transitions.