CPRE Requirements Modeling & Use Cases

Question 1

In UML use case modeling, what does a '<>' relationship between two use cases indicate?

Accepted Answer

The base use case always incorporates the behavior of the included use case

Answer

An <> relationship means the base use case always (unconditionally) invokes the included use case as part of its execution.

Question 2

Which element in a use case model represents the boundary between the system under specification and its environment?

Accepted Answer

System boundary (subject)

Answer

The system boundary (also called the subject in UML 2) defines what is inside the system versus what is external to it.

Question 3

A use case description includes a 'main success scenario' and 'extensions'. What do extensions represent?

Accepted Answer

Alternative flows that handle exceptions or optional branches

Answer

Extensions (also called alternative flows) describe how the use case handles deviations, exceptions, or optional paths from the main success scenario.

Question 4

In requirements modeling, what is the primary purpose of an Entity-Relationship Diagram (ERD)?

Accepted Answer

To illustrate the data structures and relationships between data entities

Answer

An ERD models the data domain by showing entities, their attributes, and the relationships (cardinality and participation) between them.

Question 5

Which of the following is a valid pre-condition in a use case specification?

Accepted Answer

The user must be logged in and have appropriate permissions before initiating the transaction

Answer

A pre-condition states what must be true before the use case can begin; requiring the user to be authenticated is a classic pre-condition.

CPRE - Certified Professional for Requirements Engineering Practice Test

CPRE - Certified Professional for Requirements Engineering Practice Test

CPRE Requirements Modeling & Use Cases