Requirements Engineering/Science

Question 1

What subcategories of Functional Requirements exist?

Answer 1

1) Organisational: who requires what, existing business processes
2) Application domain: different domains or content have different requirements
3) Navigation: existing organisation workflow, predict user behaviour
4) Interaction: map UI to what application must do

Question 2

Web apps are ___ oriented?

Answer 2

Content

Question 3

What 3 main classifications of non functional requirements exist?

Answer 3

1) Product: constraints inherent to project you are making (behaviour of product - time, etc)
2) Project organisational: constraints inherent to organisations involved (eg. requiring languages or standards)
3) External: constraints inherent to context in which organisation operates (eg. law)

Question 4

Detail the requirements analysis process (agile)

Answer 4

1) Feasability - quick prototype, is it feasible?
2) Elicitation and Analysis - go into real world and sample requirements
3) Elaboration and specification - formally document and make concrete requirements
4) Negotiation - know we have stakeholders, hierarchy of requirements
5) Validation - validate and order requirements
6) Management - requirements change so need to identify and make changes quickly

Order changes each time

Question 5

What does the feasibilty step in requirements analysis do?

Answer 5

Identify stakeholders, affected business processes or domains, schedule and cost constraints, integration requirements with existing systems, early protyping

Question 6

What are the advantages and disadvantages of interviews?

Answer 6

Time consuming

Good for sensitive topics

Question 7

What are the advantages and disadvantages of group interviews?

Answer 7

Good for aiding recall - prompting others
Hard to keep on task
Time efficient

Question 8

What are the advantages and disadvantages of surveys?

Answer 8

Requires knowing what to ask

Easily implemented

Question 9

What is ethnography?

Answer 9

Go native. Watch people in natural environment. Don’t interfere with them.

Question 10

What is a technology tour?

Answer 10

Examining the tech in the user’s ecosystem. Often done with ethnography.

Question 11

What is a cultural probe?

Answer 11

Users record themselves. Ethnography without us being present to watch.

Question 12

What does INVEST stand for?

Answer 12

Independent
Negotiable
Valuable
Estimatable
Small
Testable

Question 13

What do we do in the elaboration and specification step of requirements analysis?

Answer 13

modelling
viewpoint oriented requirements analysis
uses INVEST

Question 14

What do we do in the negotiation step of requirements analysis?

Answer 14

scope
priority
conflict resolution

Question 15

What do we do in the validation step of requirements analysis?

Answer 15

is everyone on same page

ask people about requirements

Question 16

What do we do in the management step of requirements analysis?

Answer 16

requirements change so ICTT: 
identify (webmaster)
control
track 
trace

Question 17

What is specific user characterisation?

Answer 17

knowledge of jobs

application familiarity

Question 18

What is generic user characterisation?

Answer 18

learning style
tool preference
physical/cultural differences

Question 19

Do we need to document requirements?

Answer 19

You bet.

Question 20

What’s the most important part of the requirements analysis process?

Answer 20

Elicitation and analysis

Question 21

What tools do we have for elicitation and analysis?

Answer 21

1) Interviews
2) Focus groups
3) Surveys
4) Ethnography
5) Cultural probe
6) Technology tour
7) Lab work
8) Existing practices