IREB_CPRE_FL Online Practice Questions and Answers

Which definition best characterizes the term "traceability" in terms of requirements engineering? (2 Points)

A. Traceability of the effort for the elicitation of requirements, beginning with the elicitation of the documentation right to the point of requirements acceptance

B. Monitoring of progress in requirements elicitation

C. Ability to analyze requirements for contradictory content, especially between the requirements specifications and the test cases

D. Traceability of the requirements, along with the associated documents, from the requirements elicitation to the implementation

E. Level of stabilisation between the elicited and approved requirements

Your company works intensively with models in requirements engineering and uses UML for the description of models. Which three capabilities should a modeling tool possess in order to be able to create traceable models in the requirements engineering? (3 Points)

A. The model elements can be stored under version control

B. The models are checked for conformity with the UML definition

C. The model is exported in the XML format

D. Every model element must possess an ID

E. Model elements can be linked via hyperlinks

F. The modeling tool creates reports suitable for management

You are to create a requirements specification for an internet banking software. The system shall perform bank credit transfers and therefore receives from the user, among other information, the bank identification code and the name of the bank. Now things have changed so that only the bank identification code must be entered by the user and the bank name is no longer required. On which part of your documentation do you most likely have to work in order to incorporate this change? (2 Points)

A. Nowhere, since this is a detail for the architecture.

B. In the chapter in which the states of the system are described.

C. As a change in the goals has been communicated, the goals in the specification must be updated.

D. If it is about inputs and outputs of the system, this change has to be worked into the context diagram.

E. You have to adjust the class model and/or the data model, which describe the structure of the system's input and output data.

Requirements documentation can either be natural language or model-based. Which two statements are most applicable? (2 Points)

A. If documentation is model-based, natural language documentation can be dispensed with.

B. As models are more formal, they offer a higher degree of uniqueness compared to natural language.

C. In requirements engineering models are more suitable than textual descriptions to reduce the complexity of the entity being considered.

D. When deciding between model-based and natural language documentation, model-based is preferable.

Validating requirements is one of the main activities of requirements engineering. Which four of the following techniques are suitable for requirements validation? (2 Points)

A. Stakeholder analysis

B. Walk through

C. Ranking

D. Monitoring

E. Decomposition

F. Apprenticing

G. Generalization

H. Validation by using an interface prototype

I. Perspective-based reading

J. Inspection

K. Visualization

You are employed as a requirements engineer in a company in the logistics sector and are involved in a project that aims to replace a legacy application for distribution and shipment of goods with a new system. A colleague has already created a context diagram. You are assigned to check this. What are your thoughts about this? Indicate for each statement whether it is true or false. (3 Points)

A. A, C, F, G

You have been commissioned to analyze a change request for its possible impact. Which of the following aspects must be analyzed for this? (2 Points)

A. B, C, E, G

The activity diagram below shows a simplified order processing procedure. Which of the following statements is correct for this flow? (2 Points)

A. The flow is not modelled correctly, since no condition (branch)should be present within a fork.

B. The flow is modelled correctly: the goods branch as well as the export and domestic order branch are processed in parallel to one another.

C. The flow is not modelled correctly, since the branches for the domestic and export orders must be consolidated via a diamond symbol.

D. The flow is modelled correctly and the "issue invoice" activity is conducted after the "compile goods" activity.

Assess the following statements about the natural language documentation of requirements in terms of being applicable or not applicable. (2 Points)

A. B, D, F, H, J

The following state diagram is to be found in a requirements specification for an order management system. Which of the following requirements is consistent with the diagram and which are not? (2 Points)

A. A, D, F, G