Introduction & Foundation

Question 1

Define requirement (3)

Answer 1

1. A condition or capability needed by a user to solve a problem or achieve an objective.
2. A condition or capability that must be met or possessed by a system or system component to satisfy a contract, standard, specification, or other formally imposed documents.
3. A documented representation of a condition or capability as in 1 or 2.

Question 2

Define stakeholder

Answer 2

A stakeholder of a system is a person or an organization that has an (direct or indirect) influence on the requirements of the system.

Question 3

Define requirements engineering

Answer 3

Requirements engineering is a systematic and discplined approach to the specification and management of requirements.

Question 4

Goals of requirements engineering (2)

Answer 4

1. Knowing the relevant requirements, achieving a consensus among the stakeholders about these requirements, documenting them according to given standards, and managing them systematically.
2. Understanding and documenting the stakeholders’ desires and needs, they specifying and managing requirements to minimize the risk of delivering a system that does not meet the stakeholders’ desires and needs.

Question 5

4 core activities of requirements engineering

Answer 5

1. Elicitation
2. Documentation
3. Validation and negotiation
4. Management

Question 6

Elicitation

Answer 6

During requirements elicitation, different technique are used to obtain requirements from stakeholders and other sources and to refine the requirements in greater detail.

Question 7

Documentation

Answer 7

During documentation, the elicited requirements are described adequately. Different techniques are used to document the requirements by using natural language or conceptual models.

Question 8

Validation and negotiation

Answer 8

In order to guarantee that the predefined quality criteria are met, documented requirements must be validated and negotiated early on.

Question 9

Management

Answer 9

Requirements management is orthogonal to all other activities and comprises any measures that are necessary to structure requirements, to prepare them so that the can be used by different roles, to maintain consistency after changes, and to ensure their implementation.

Question 10

Necessary capabilities requirements engineer (7)

Answer 10

1. Analytic thinking
2. Empathy
3. Communication skills
4. Conflict resolution skills
5. Moderation skills
6. Self-confidence
7. Persuasiveness

Question 11

Functional requirement

Answer 11

A requirement concerning a result of behavior that shall be provided by a function of the system.

Question 12

Quality requirements

Answer 12

A requirement that pertains to a quality concern that is not covered by functional requirements.

Question 13

Examples functional requirements (3)

Answer 13

1. functional
2. behavioral
3. data requirements

Question 14

Examples quility requirements (5)

Answer 14

1. Performance,
2. availability,
3. dependability,
4. scalability or
5. portability

Question 15

Constraint

Answer 15

A requirement that limits the solution spcae beyond what is necessary for meeting the given functional requirements and quality requirements.

Question 16

System context

Answer 16

The part of the system environment that is relevant for the definition as well as the understanding of the requirements of a system to be developed.

Question 17

System boundary

Answer 17

Seperates the system to be developed from its environment; i.e. it separates the part of the reality that can be modified or altered by the development process from aspects of the environment that cannot e changed or modified by the development process.

Question 18

Requirement sources (3)

Answer 18

1. Stakeholders
2. Documents
3. Systems in operation

Question 19

Categories Kano model (3)

Answer 19

1. Dissatisfiers
2. Satisfiers
3. Delighters

Question 20

Disadvantage survey technique

Answer 20

Requirements engineer is in the lead. This might resultat in the fact that stakeholder concerns are forgotten, siperseded, or disregarded

Question 21

Survey techniques

Answer 21

1. Interview

2. Questionnaire

Question 22

Disadvantage interview

Answer 22

Very time-consuming

Question 23

Advantage interview

Answer 23

Uncover subconsious requirements