Chapter 2

Question 1

Methodology

Answer 1

A methodology includes detailed steps, common forms and other tools that you might use on any system development process.

Question 2

SDLC or systems development lifecycle

Answer 2

Is a successful methodology that helps new information systems start out smoothly and is also called the waterfall model

Question 3

SDLC or waterfall model 5 steps

Answer 3

Planning 
Analysis 
Design
Implementation
Maintenance

Question 4

Economic feasibility

Answer 4

Attempts to determine if perceived being its outweigh the costs

Question 5

Schedule feasibility

Answer 5

Tries to determine whether time needed for project is less than or equal to Time allotted

Question 6

Technical feasibility

Answer 6

Accesses whether the company has the technical expertise required to complete the project

Question 7

Legal feasibility

Answer 7

To ensure that project complies with applicable laws

Question 8

Operational feasibility

Answer 8

To determine whether key players will support the project itself and the resulting info system

Question 9

Project team

Answer 9

Should consist of IS pros and business pros. A unique team as far as skill set is more successful

Question 10

Goals and scope

Answer 10

Identified in quantifiable measures (10% increase in profit)

Question 11

Project plan

Answer 11

The final product of the planning phase

It is revised and edited throughout the SDLC

Question 12

Analysis phase

Answer 12

Purpose is to figure out what the problem is

Question 13

The understanding of all details of the document is called

Answer 13

Requirements determination

Question 14

The document of requirements produced by IS pros usually takes the form of complex models like flow charts these are called…

Answer 14

Logical models

Question 15

Design phase answers how the project will be accomplished

Answer 15

All members of the team select the best possible solution and then physical models should be created
Specific hardware and software is selected to get the job done and specs for custom software are created

Question 16

Switching from old IS to new IS can be done in 4 ways “going live”

Answer 16

Plunge - turns one system off one day turns the other on the next day

Parallel- runs both systems at the same time until confidence in the new system is established

Phased- breaks project up into sections and implements independently

Pilot- implements the entire project for only part of the company to see how it works before using it all around

Question 17

Maintenance phase

Answer 17

Fixing bugs and answering questions about the new system

Question 18

SDLC problems

Answer 18

Scope creep- scope and objectives are not clearly identified in planning phase and therefore creeps into different directions

Partial analysis- the project is not fully analyzed and requirements are incomplete

Analysis paralysis- this occurs when the project is over analyzed and not allowed to continue for fear of omission

Question 19

SDLC is a time consuming approach

Answer 19

However it ensures that detailed requirements are outlined

Question 20

RAD is another methodology it combines analysis design and implementation phases

Answer 20

Planning
Analysis design and implementation
Maintenance

Question 21

Instead of trying to develop logical models the RAD system attempts to develop a….

Answer 21

Prototype

Question 22

Prototype

Answer 22

A model that more closely resembles the final product than a logical model or physical model

Question 23

Unified process

Answer 23

Broken into parts then Core objects are analyzed and put together and the extra objects are added afterward. Reduce risk by getting model working as quickly as possible

Question 24

Extreme programming

Answer 24

Jumps to implementation phase immediately analysis is done when programming cannot proceed. This should only be used for smaller projects

Question 25

5 basic components of information system

Answer 25

Hardware
Software 
Data
Procedures
People