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
In requirements engineering, a differentiation is made between system scope and context scope. In both cases
it is possible that so-called grey zones may appear. For each statement, indicate if it is true or false.
(2 Points)
A. BCEG
In delimiting system and system context, a differentiation is made between the system boundary and the context boundary. This differentiation is important in order to understand which aspects impact on the requirements of the system to be developed and which do not. Choose the two correct statements. (2 Points)
A. The context boundary separates the system from the system context.
B. The system boundary and the context boundary define the system context.
C. The system context includes all aspects that are not relevant to the requirements of the planned system.
D. Only the aspects within the system boundary must be taken into account in order to determine the requirements of the system to be developed.
E. The selection of the system boundary establishes which aspects are covered by the system to be developed and which lie beyond its scope.
In requirements engineering, the use of model-based documentation is very helpful. Behaviour, functions and the structures of the entity being considered can be represented with diagrams. Which two of the following diagrams help to represent the structural perspective of the requirements model? (1 Point)
A. Entity-relationship diagram
B. State diagram
C. Deployment diagram
D. Class diagram
E. Data diagram
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.
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
Listed below you will find four reasons why different views of individual components of the requirements are used instead of a single view displaying all the requirements and attributes. Which of the following reasons are true and which are false? (2 Points)
A. A, C, E, H
Starting from an informal and unstructured description of the facts, semiformal description techniques attempt to take a step in the direction of formality, for example to prevent misunderstandings. One of the semiformal description techniques is the sentence-template. What is the most precise definition of a sentence-template as used for requirements? (1 Point)
A. A sentence-template is a blueprint for a requirement.
B. A sentence-template is a blueprint for the semantic filling of the individual requirement elements.
C. A sentence-template is a blueprint for the syntax and semantics of a requirement.
D. A sentence-template is a blueprint for the syntactical structure of an individual requirement.
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
Which of the following elements are elements of a state diagram and which are not? Please indicate true or false. (1 Point)
A. A, C, E, H, I
