Techniques of Requirement Gathering (week 2)

Question 1

what are the 4 skills required for requirements gathering

Answer 1

QUESTIONING
OBSERVING
RESEARCHING
MODELLING

Question 2

good questions initiate ____________

Answer 2

process

Question 3

what are the 3 themes that questions are centered on

Answer 3

WHAT ARE THE BUSINESS PROCESSES

HOW IS THE BUSINESS PROCESS PERFORMED

WHAT INFORMATION IS REQUIRED

Question 4

what are the pros of interviewing users and other stakeholders to gather information

Answer 4

–> it is an effective way to understand the business functions and business rules

Question 5

what are the cons of interviewing users and other stakeholders to collect the information

Answer 5

–> time consuming and requires further rework on the information gathered

Question 6

what are the types of questions being asked when interviewing users and stakeholders

Answer 6

mix of open ended and close ended questions

Question 7

when to interview users and stakeholders to gather requirements

Answer 7

requires in depth information on the new/existing system

Question 8

what are the pros of distributing and collecting questionnaires

Answer 8

it is economical for a large group which supports distributed geographical location

Question 9

what are the cons of distributing and collecting questionnaires

Answer 9

it is hard to construct good questions

there is a constraint to research further

Question 10

what type of questions are included in distributing and collecting questionnaires

Answer 10

close ended questions

opinion questions

explain the problem or procedure questions

Question 11

when to distribute and collect questionnaires to gather information

Answer 11

when input is required from a large group of people who are geographically dispersed

Question 12

what are the pros of reviewing the inputs, outputs and documentation

Answer 12

allows the analyst to gain an understanding of the organization before meeting the users.

Question 13

what are the cons of reviewing inputs, outputs and documentation

Answer 13

the documents might not match up to the actual operations

might be outdated.

Question 14

when to review inputs, outputs and documentation

Answer 14

to use in the initial stages of the investigation when the analyst is unfamiliar with the organization

Question 15

what are the 2 sources of information when reviewing inputs, outputs and documentation

Answer 15

–> external to the organization (industry journals and best practices)

–> existing business documents and procedure description within the organization (for preliminary purposes and visual aid)

Question 16

what are the pros of observing and documenting the business processes

Answer 16

there is first hand experience with the system allowing for validation of information and business performance

Question 17

what are the cons of observing and documenting the business process

Answer 17

can be intrusive with information confidentiality issue

Question 18

when to observe and document business requirements in requirements gathering process

Answer 18

when there is a need to gather quantitative data about the business and validation of conflicting information provided

Question 19

how to observe and document business processes

Answer 19

diagram all the information gathered into workflows =>create activity diagrams (relationship between activities, personnel responsible for each of the activity)

Question 20

what are the pros of building effective prototypes

Answer 20

• -> time and cost saving

- -> inaccurate user requirements can be discovered earlier with greater user involvement

Question 20

what are the cons of building effective prototypes

Answer 20

–> too much time spent on prototyping rather than on analysis

Question 20

when to use building effective prototypes in requirement gathering process.

Answer 20

projects with high interactivity with the users

Question 21

what is a prototype

Answer 21

it is an initial look alike model with limited features of a real production system

Question 22

what are the 3 types of prototypes

Answer 22

• -> discovery prototype = model created to verify the concept and then discarded
• -> evolving prototype = working model that grows and may become a part of the system
• -> mock up = example of the final product for viewing only, not executable

Question 23

what are the pros of research vendor solutions

Answer 23

• -> provides a platform for learning from past experiences

- -> cheaper and less risky to buy a solution rather than to build it

Question 24

what are the cons of research vendor solutions

Answer 24

–> features to support the company are general and companies later find out that they only support half the functions that were needed after purchase.

Question 25

when to use research vendor solutions

Answer 25

features to support business is general and nothing too specific