Ch2

Question 1

the set of computing hardware, network hardware and topology, and system software employed by the organization

Answer 1

Technology architecture

Question 2

the information systems that supports the organization (information systems, subsystems, and supporting technology)

Answer 2

Application architecture

Question 3

Systems Analysis Activities

Answer 3

1-Gather detailed information
2- Define requirements
3- Prioritize requirement
4-Develop user-interface dialogs
5- Evaluate requirements

Question 4

Gather Detailed Information

Answer 4

Interviews, questionnaires, documents, observing business processes, researching vendors, comments and suggestions

Question 5

Define Requirements

Answer 5

Modeling functional requirements and non-functional requirements

Question 6

Prioritize Requirements

Answer 6

Essential, important, vs. nice to have

Question 7

Develop User-Interface Dialogs

Answer 7

Flow of interaction between user and system

Question 8

Evaluate Requirements with Users

Answer 8

User involvement, feedback, adapt to changes

Question 9

System Requirements =

Answer 9

Functional requirements
Non-functional requirements

Question 10

the activities the system must perform

Answer 10

Functional Requirements

Question 11

Business uses, functions the users carry out

Answer 11

Functional requirement

Question 12

system characteristics
Constraints and performance goals

Answer 12

Non-Functional Requirements

Question 13

FURPS

Answer 13

Functional requirements Usability requirements Reliability requirements Performance requirements Security requirements

Question 14

Functional

Answer 14

Business rules and processes

Question 15

Non- functional

Answer 15

Usability: user interface , ease of use
Reliability: Failure rate,recovery methods
Performance: Response time, throughput
Security:Access controls, encryption

Question 16

Additional Requirements Categories

Answer 16

•Design constraints
•Implementation requirements
•Interface requirements
•Physical requirements
•Supportability requirements

Question 17

Specific restrictions for hardware and software

Answer 17

Design constraints

Question 18

Specific languages, tools, protocols, etc.

Answer 18

Implementation requirements

Question 19

Interface links to other systems

Answer 19

Interface requirements

Question 20

Physical facilities and equipment constraints

Answer 20

Physical requirements

Question 21

Automatic updates and enhancement methods

Answer 21

Supportability requirements

Question 22

persons who have an interest in the successful implementation of the system

Answer 22

Stakeholders

Question 23

persons within the organization

Answer 23

Internal Stakeholders

Question 24

persons outside the organization

Answer 24

External stakeholders

Question 25

persons who regularly interact with the system

Answer 25

Operational stakeholders

Question 26

persons who don’t directly interact, but use the information or have financial interest

Answer 26

Executive stakeholders

Question 27

Information Gathering Techniques

Answer 27

•Interviewing users and other stakeholders •Distributing and collecting questionnaires •Reviewing inputs, outputs, and documentation •Observing and documenting business procedures •Researching vendor solutions •Collecting active user comments and suggestions

Question 28

Interviewing Users and Other Stakeholders

Answer 28

•Prepare detailed questions •Meet with individuals or groups of users •Obtain and discuss answers to the questions •Document the answers •Follow up as needed in future meetings or interviews

Question 29

Additional Techniques in Gathering information

Answer 29

•Observe and Document Business Processes •Research Vendor Solutions •Collect Active User Comments and Suggestions

Question 30

Observe and Document Business Processes

Answer 30

Watch and learn Document with Activity diagram

Question 31

Research Vendor Solutions

Answer 31

See what others have done for similar situations White papers, vendor literature, competitors

Question 32

Collect Active User Comments and Suggestions

Answer 32

Feedback on models and tests Users know it when the see it

Question 33

a representation of some aspect of the system being built

Answer 33

Model

Question 34

Types of Models

Answer 34

•Textual model •Graphical models •Mathematical models

Question 35

something written down, described

Answer 35

Textual model

Question 36

diagram, schematic

Answer 36

Graphical models

Question 37

formulas, statistics, algorithms

Answer 37

Mathematical models

Question 38

Standard graphical modeling symbols/terminology used for information systems

Answer 38

Unified Modeling Language (UML)

Question 39

Reasons for Modeling

Answer 39

•Learning from the modeling process •Reducing complexity by abstraction •Remembering all the details •Communicating with other development team members •Communicating with a variety of users and stakeholders •Documenting what was done for future maintenance/enhancement

Question 40

Evant and use case description watch type of Model?

Answer 40

Textual

Question 41

Use case diagram watch type of Model?

Answer 41

Graphical models

Question 42

Location diagram, class diagram, sequence diagram, communication diagram, state machine diagram watch type of Model?

Answer 42

Mathematical models

Question 43

sequence of processing steps that completely handles one business transaction or customer request

Answer 43

Workflow

Question 44

describes user (or system) activities, the person who does each activity, and the sequential flow of these activities

Answer 44

Activity Diagram

Question 45

Systems analysis activates correspond to the core SDLC process

Answer 45

Discover and understand details