CHAPTER 6:

Question 1

Requirements Analysis Purpose

Answer 1

To find or gather requirements for a system to be developed.

Question 2

what Requirements Analysis is also known as

Answer 2

Fact-Finding Process, Requirement Elicitation.

Question 3

Fact-finding techniques

Answer 3

Interview
Document review
Observation
Sampling
Research
Surveys and questionnaires

Question 4

Interview definition and how people’s opinions

Answer 4

An information-gathering which is a directed conversation with a specific-purpose that uses a question and answer format.
Most important is seek the opinion of the person you are interviewing as opinion are more important than facts

Question 5

What does Document Review Ami for?

Answer 5

Aims to find out the information requirements that people have in the current system
Includes:
Review existing system documentation
Obtain copies of actual forms and documents
Review blank copies of forms
Review samples of completed forms
Review software documentation

Question 6

Purpose of Requirements Analysis

Answer 6

To find or gather requirements for a system to be developed.

Question 7

steps for the interview 7

Answer 7

Step 1: Determine the people to interview
Step 2. Establish objectives for the interview
Step 3. Develop interview questions
Step 4. Prepare for the interview
Step 5. Conduct the interview
Step 6. Document the interview
Step 7. Evaluate the interview

Question 8

what Questionnaires and Surveys aim for and Includes

Answer 8

Aims to obtain the views of a large number of people in a way that can be analyzed statistically
- postal, web-based and email questionnaires
- open-ended and closed questions
- gathering opinion as well as facts

Question 9

what is Sampling know for

Answer 9

Also known as purposive and selective sampling

Question 9

what is the Main objective of sampling

Answer 9

to ensure representation of the overall population accurately

Question 9

what is purposeful sampling

Answer 9

is a sampling technique that qualitative researchers use to recruit participants who can provide in-depth and detailed information about the phenomenon under investigation

Question 10

what are techniques of sampling

Answer 10

Systematic sample : Select every tenth customer for review
Stratified sample : Select five customers from each of four postal codes
Random sample : Any 20 customers

Question 10

what is Observation aim for ?

Answer 10

Aim is to see what really happens, not what people say happens.

Question 10

what are the Two CASE categories of the recording the facts

Answer 10

Upper CASE tools : support modeling process and produce a logical design of the information system
Lower CASE tools : speed the development process by generating source code based on the logical model