Unit 2

Question 1

The process of reaching and documenting an agreed set of requirements is known as ____________ ___________ .

Answer 1

requirements engineering

Question 2

____________ are individuals and/or organisations affected by the success or failure of a software system

Answer 2

stakeholders

Question 3

The requirements for a system effectively form a ________ between the client and the developers

Answer 3

contract

Question 4

________ are specific sequences of actions that illustrate how a task can be performed. They can be used to investigate dependencies between requirements.

Answer 4

scenarios

Question 5

There are four activities that can be identified as common to many requirements engineering processes. They are:

Answer 5

requirements elicitation
requirements analysis and negotiation
requirements documentation
requirements validation

Question 6

Requirements ___________ is the activity concerned with identifying the requirements

Answer 6

elicitation

Question 7

Requirements ________ and ___________ is the activity where requirements are categorised, prioritised and examined for their properties of consistency, completeness and ambiguity

Answer 7

analysis and negotiation

Question 8

Requirements _____________ is usually done through a template document

Answer 8

documentation

Question 9

Requirements __________ consists of a careful check of the overall requirements documentation, usually following a checklist of questions

Answer 9

validation

Question 10

Where and when does the requirements engineering process take place in an iterative and incremental development process?

Answer 10

The main output of a requirements engineering process is the contract, therefore it has to take place early in the development process, however, iterative and incremental processes recognise that requirements may be revisited in parallel with other phases of development

Question 11

How do requirements and stakeholders related to each other?

Answer 11

Requirements arise from stakeholders’ needs

Question 12

What are the benefits of documenting requirements within a project?

Answer 12

Requirements record decisions
They are the main reference for what should be built
They are the basis for validation of the built system

Question 13

What is an agile approach to requirements engineering documentation?

Answer 13

Requirements documentation should serve as a vehicle for common understanding, communication and future traceability.

Question 14

What is a functional requirements?

Answer 14

A functional requirement describes an action that the product must take if it is to carry out the work it is intended to do

Question 15

What is a non-functional requirement

Answer 15

A non-functional requirement is a requirement about a quality that the product must have

Question 16

A _________ ________ requirement is a constraint on the product resulting from the technology of the solution that must be adopted

Answer 16

technical solution

Question 17

________ __________ requirements are a specification of the work independent of the way that will be carried out

Answer 17

Business functional

Question 18

____-___-____ requirements: the spirit of the product’s appearance

Answer 18

Look-and-feel

Question 19

_________ and ________ requirements: The product’s ease of use and any special usability considerations

Answer 19

Usability and humanity

Question 20

___________ requirements: how fast, safe, accurate, reliable and available the functionality must be

Answer 20

Performance

Question 21

___________ and _____________ requirements: the environment on which the product will have to work, and what considerations must be made for this environment

Answer 21

Operational and environmental

Question 22

______________ and _______ requirements: expected changes, and the time allowed to make them

Answer 22

Maintainability and support

Question 23

________ requirements: special requirements that come about because of the people involved in the product’s development and operation

Answer 23

Cultural

Question 24

_____ requirements: the laws and standards that apply to the product

Answer 24

Legal

Question 25

________ requirements: the security and confidentiality of the product`

Answer 25

Security

Question 26

The five aspects of security are:

1. ______ addresses uninterrupted or continual access to data and functionality by authorised users
2. _______ addresses the protection of data from unauthorised access and disclosure
3. _________ addresses the consistency of data, the ability to prevent unauthorised modification or deletion of data
4. _____ addresses both how the correctness of product and data can be verified, and how to help detection of inappropriate access and intrusion
5. ________ addresses the protection of a system against threats and attacks

Answer 26

1. access
2. privacy
3. integrity
4. audit
5. immunity