Chapter 1

Chapter 1

Introduction to Systems Analysis

and Design











Describe the impact of information

technology

Define systems analysis and design and the

role of a systems analyst

Define an information system and describe

its components

Explain how to use business profiles and

models

Explain Internet business strategies and

relationships, including B2C and B2B

2









Identify various types of information

systems and explain who uses them

Distinguish among structured analysis,

object-oriented analysis, and agile methods

Explain the waterfall model, and how it has

evolved

Discuss the role of the information

technology department and the systems

analysts who work there

3

•

•

Companies use

information as a

weapon in the battle to

increase productivity,

deliver quality

products and services,

maintain customer

loyalty, and make

sound decisions

Information technology

can mean the

difference between

success and failure

FIGURE 1-1 These headlines show the

enormous impact of information

technology on our lives.

4



Information Technology (IT)

◦ Combination of hardware and software products

and services that companies use to manage, access,

communicate, and share information



Welcome to the 21st Century: The IT Journey

Continues

◦ Changes in the world

◦ Changes in technology

◦ Changes in client demand

FIGURE 1-3 How times

have changed!

5



Systems Analysis and Design

 Step-by-step process for developing high-quality

information systems

◦ What Does a Systems Analyst Do?

 Plan, develop, and maintain information systems

 Also manages IT projects, including tasks, resources,

schedules, and costs

 Conducts meetings, delivers presentations, and writes

memos, reports, and documentation

6

•

•

•

A system is a set of related

components that produces

specific results

Mission-critical systems are

vital to a company’s

operations...