Question

1. In a fully developed use case description the preconditions describe what business conditions must occur before the use case is invoked​. (T / F)

2.. The number of associations that occur among specific things in an entity relationship diagram is called multiplicity. (T / F)

3. In a state machine diagram, a concurrency bar is used to represent concurrent paths.​ (T/F)

4. Using event decomposition technique, an analyst can create a list of use cases at the right level of analysis.​ (T/F)

5 Descriptive properties of things in the problem domain are often documented as what?​

Data entities Relationships Object Attributes

Answer 1

1) False

Reason :In a fully developed use case description the preconditions describe What objects must exist prior to the use case executes

2)False

Reason : The number of associations that occur among specific things in an entity relationship diagram is called Cardinality

3) True

Reason : a concurrency bar is used to represent concurrent paths in state machine diagram.Concurrency on astate machine diagram can be expressed by an orthogonal state. A fork is represented by a bar with one or more outgoing arrows terminatingon orthogonal region.

4)True

Reason : Starting with business events helps the analyst define each use case at the right level of detail.

5) option d - Attributes

Reason : Attributes define the descriptive properties of things in the problem domain.