Chp 1

Question 1

Define Information Systems analysis and design

Answer 1

complex, challenging and stimulation organizational process that a team of business professionals uses to develop and maintain computer-based information systems

Question 2

Application Software

Answer 2

software designed to support a specific organizational function or process

Question 3

System Analyst

Answer 3

organizational role most responsible for the analysis and design of information system

Question 4

Systems development methodology

Answer 4

A standard process followed in an organization to conduct all the steps necessary to analyze, design, implement, and maintain information systems.

Question 5

Systems development life cycle (SDLC)

Answer 5

traditional methodology used to develop, maintain, and replace is

Question 6

Describe the SDLC

Answer 6

features many phases , circular process of planning, analysis, design, implementation, and maintenance

Question 7

First phase in SDLC

Answer 7

Planning: identifies needs, analyze, prioritize, and arrange of an IS

Question 8

Second phase in SDLC

Answer 8

Analysis: system requirements are studied and structured

Question 9

Third phase in SDLC

Answer 9

Design: description of the recommended solution is converted into logical and then physical systems specifications

Question 10

Logical Design

Answer 10

all functional features of the system are described independently of any computer platform

Question 11

Physical Design

Answer 11

logical specification of the system from logical design are transformed into technology-specific details from which all programming and system construction can be accomplished

Question 12

Fourth phase in SDLC

Answer 12

Implementation: IS is coded, tested, installed, and supported in the organization

Question 13

Fifth phase in SDLC

Answer 13

Maintenance: IS is systematically repaired and imporved

Question 14

Attempts to make systems development less of an art and more of a science are referred to as

Answer 14

systems engineering or software engineering

Question 15

Explain CASE tools

Answer 15

Computer-aided software engineering: software tools that provide automated support for some portion of the systems development process
Used to support wide variety of SDLC activities
ex: Diagramming, repository, form & report generators, code,

Question 16

How does Case tools help?

Answer 16

Helps programmers and analysts do jobs more efficiently and effectively by automating routine tasks

Question 17

Explain RAD

Answer 17

Rapid Application Development: created to radically decrease the time needed to design & implement IS
Life Cycle: Requirements planning>User Design>Construction>Cutover

Question 18

prototyping

Answer 18

wen users/analysts work together to design interfaces and reports for new systems

Question 19

Describe the 3 key principles of Agile Methodologies

Answer 19

a focus on (1) adaptive over predictive methodologies> Iterative development
(2) people rather than roles> talented individuals (3) self-adaptive processes>refined and improved

Question 20

Describe eXtreme programing

Answer 20

2 people approach to software development: short cycles, incremental planning, automated tests written by programmers and customers, and evolutionary approach
life cycle converge into Coding, testing, listening and designing

Question 21

what are the relevant parts of eXtreme programming

Answer 21

(1) how planning, analysis, design, and construction are all fused into a single phase
(2) unique way of capturing and presenting system requirements and design specifications

Question 22

Object oriented analysis and design

Answer 22

systems development methodologies and techniques based on objects rather than data/processes

Question 23

Explain OOAD

Answer 23

combines data and process (methods) into single entities

goal is to make systems elements more reusable, thus improving system quality and productivity

Question 24

Inheritance

Answer 24

object classes are arranged in a heiarchy and each object class assumes the attributes and methods of its ancestor> allows new but related classes to be derived from existing classes

Question 25

Object Class

Answer 25

logical grouping of objects that have the same/similar attributes and behaviors (methods) ex: people>customer

Question 26

Primary task of OOAD

Answer 26

modeling the details of the objects behavior and communication with other object so that system requirements are met, and reexamine and redefining objects to better take advantage of inheritance land other benefits

Question 27

Explain RUP

Answer 27

rational unified process: establishes 4 phases of dev: inception>define scope prepare software dev plan, elaboration>detail user requirements and baseline archit, construction>coded, tested, documented, and transition>
Based on an iterative, incremental approach