chAptEr 3 Flashcards

1
Q

What is a requirement?

A

A statement of what the system must do.

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2
Q

List the types of requirements.

A

Business requirements
Use requirements
Functional requirements
Nonfunctional requirements
System requirements

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3
Q

What are business needs?

A

What the business needs

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4
Q

What are user requirements?

A

What the user needs to do.

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5
Q

What are user requirements?

A

What the software should do

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6
Q

What are nonfunctional requirements?

A

Characteristics the system should have.

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7
Q

What are system requirements?

A

How the system should be built

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8
Q

List some examples of business requirement.

A

Produce performance reports
Provide accurate project status report

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9
Q

List some examples of user requirements.

A

Scheduling client appointments
Placing new customer orders

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10
Q

List some examples of functional requirements.

A

Process-oriented.
Information-oriented.

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11
Q

List the behavioral properties of nonfunctional requirements. COPS

A

Operational
Performance
Security
Cultural & Political

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12
Q

What is the operational behavioral property?

A

Physical and technical operating environment.

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13
Q

What is the performance behavioral property?

A

Speed, capacity, and reliability of the system.

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14
Q

What is the security behavioral property?

A

Access restrictions, needed safeguards

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15
Q

What are the cultural and political behavioral properties?

A

Cultural and political issues that will affect the final system.

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16
Q

What is the purpose of the requirements definition statement?

A

To define the project scope.

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17
Q

List the requirements elicitation techniques.

A

Interviews
Questionnaires
Observation
Joint application development (JAD)
Document analysis

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18
Q

How is the interview technique conducted?

A

The systems analysts collects information from
individuals face to face

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19
Q

List the types of interview structures.

A

Top-down approach - broad to specific.
Bottom-up approach - specific to broad.

20
Q

List the types of interview question types.

A

Open-ended
Closed-ended
Probing

21
Q

List the strengths of the interview technique.

A

Questions can be personalized for each individual.
Interviewee can be asked for more feedback.
Interviewee’s nonverbal communication can be observed.

22
Q

List the weaknesses of interview technique.

A

Time costly.
Impractical due to location of interviewees.

23
Q

Study the JAD and eJAD.

A

Ayt, bet.

24
Q

What are questionnaires?

A

Special documents that allow analysts to collect information and opinions and respondents.

25
Q

List the type of questions asked in questionnaires.

A

Fixed-format questions.
Free-format questions.

26
Q

List the properties of fixed-format questions.

A

Multiple-choice questions
Easy to tabulate

27
Q

List the properties of free-format questions.

A

Open-ended essay questions
Hard to tabulate

28
Q

List the strengths of questionnaires.

A

Can be answered quickly.
Inexpensive.
Can be tabulated and analyzed.

29
Q

List the weaknesses of questionnaires.

A

Low responses.
Inflexible.
Body language cannot be observed.

30
Q

List the steps to develop a good questionnaire.

A

Define Goals
Question Types
Write Clearly
Test It Out
Random Sampling

31
Q

What is the observation technique.

A

To watch a person perform activities to learn about the system.

32
Q

List the strengths of the observation technique.

A

Reliable data.
Inexpensive.
Can do work measurements.

33
Q

List the weaknesses of the observation technique.

A

Work varies in difficulty and volume.
Tasks subject to interruptions

34
Q

List the steps on how to perform observation well.

A

Plan
Get Permission
Observe Workload
Gather Materials
Sample Wisely
Review Notes

35
Q

Explain the document analysis technique?

A

Collect facts from existing documentation.
Analyze facts to determine currency.
Analyze to understand the documentation.
Use appropriate sampling technique.

36
Q

List the factors used to compare techniques.

A

Depth
Breadth
Integration
User Involvement
Cost

37
Q

List the methods used to identify small improvements.

A

Problem Analysis.
Root cause Analysis.

38
Q

Study the problem & root cause analysis

A

ayt, bet.

39
Q

What is the goal of identifying moderate improvements?

A

To improve efficiency and effectiveness.

40
Q

List the types of activities in identifying moderate improvements. DAI

A

Duration Analysis
Activity-based costing
Informal Benchmarking

41
Q

What is the goal of identifying MAJOR improvements?

A

Radical redesign of business processes

42
Q

List the types of activities in identifying MAJOR improvements. OTA

A

Outcome analysis
Technology analysis
Activity Elimination

43
Q

What is the outcome analysis?

A

Analyze how information systems and technology can help customers achieve their desired goals.

44
Q

What is the technology analysis?

A

Identify promising technologies through analyst and manager input, then discuss their potential business applications.

45
Q

What is activity elimination?

A

Brainstorm by considering the impact of eliminating each activity to challenge assumptions and identify potential improvements.