Software Engineering: Requirements Engineering

Question 1

What are the two catogories of requirements?

Answer 1

Functional: What system should do (but not HOW, it should be done)

Non-Functional: What propperties system should have

• usabillity
• performance
• scalability
• reliability
• complexity
• testability

Question 2

Requirements properties

Answer 2

Complete
Consitent
Precise
Concise

Question 3

Requirement elicitation process

Answer 3

1. Elicitation
2. Analysis
3. Reification
4. Validation

Question 4

What information needs to be gathered durng the requirement engineering process?

Answer 4

Functional

Non-functional

design constraints: Legal, regulatory, policies

emvironmental constraints: software doesnt run in isolation.

preferences:

Question 5

Validating Requirements

Answer 5

Developing concrete tests to validate requirements

Question 6

Elicitation techniques: Elements of a User story

Answer 6

1. Role-Goal-Benefit

As a [role], I want to [goal] so that [benefit]

2. Limitations

It Needs:

3. Definition of Done

It will be succesfull when it:

4. Engineering Tasks

should use:

5. Effort estimate

It will cost:

Question 7

Elicitation techniques: INVEST framework for determing whether to invest in a feature of a user story.

Answer 7

Independent
Negotiable
Valuable
Estimable
Small
Testabillity

Question 8

Elicitation techniques: Decomposition a user story

Answer 8

1 INVEST

2. Find entities (Nouns)
3. Link entities (arrows)
4. Bind Actions (verbs)
5. Prototype (Classes)
6. Formalize(class diagram, UML diagrams, flow charts)
7. Implement

Question 9

Test Case

Answer 9

Evaluates a single explicit behaviour in a program