CPRE Requirements Modeling & Use Cases 2

Question 1

In a UML activity diagram used for requirements modeling, what does a fork node represent?

Accepted Answer

The start of a parallel set of concurrent flows

Answer

A fork node splits a single flow into two or more concurrent flows that execute in parallel.

Question 2

Which notation is most appropriate for modeling the life cycle of a system object and the conditions under which it changes state?

Accepted Answer

State machine diagram

Answer

A state machine diagram models the discrete states of an object, the events that trigger transitions between states, and any associated guards or actions.

Question 3

When building a use case model, the IREB CPRE Foundation Level recommends that use cases should be specified at the level of:

Accepted Answer

Elementary business processes that deliver value to a primary actor

Answer

IREB guidance aligns with Cockburn's sea-level goal: a use case should represent an elementary business process that delivers observable value to the primary actor.

Question 4

In a data flow diagram (DFD), what does a double-headed arrow or an open rectangle with a horizontal line represent?

Accepted Answer

A data store (repository)

Answer

In Yourdon/DeMarco notation, a data store is represented as two parallel horizontal lines (or an open-ended rectangle), symbolizing a repository of data at rest.

Question 5

What is the key difference between a <> and a <> relationship in a UML use case diagram?

Accepted Answer

<> is optional and condition-dependent; <> is mandatory and unconditional

Answer

<> adds behavior optionally when a specific condition (extension point) is met, whereas <> always invokes the included use case unconditionally.

CPRE - Certified Professional for Requirements Engineering Practice Test

CPRE - Certified Professional for Requirements Engineering Practice Test

CPRE Requirements Modeling & Use Cases 2