System Analysis & Design

TERM-C

Fida Hussain Yousafzai2

Chairman department of computer scienceKardan Institute of Higher Education-Kabul

MSc(computer science)MS(software Engineering)

Learning Objectives3

Explain the key role of a systems analyst in business

Describe the various types of systems an analyst might work on

Explain the importance of technical, people, and business skills for an analyst

Explain why ethical behavior is crucial for a systems analyst’s career

Learning Objectives (continued)4

Describe the many types of technology an analyst needs to understand

Describe various job titles and places of employment where analysis and design work is done

Discuss the analyst’s role in strategic planning for an organization

Describe the analyst’s role in a system development project

Overview5

Information Systems Crucial to success of modern business organizations Constantly being developed to make business more

competitive Impact productivity and profits

Keys to successful systems development Thorough systems analysis and design Understanding what business requires

Overview (continued)6

Systems analysis – what system should do

Systems design – how components of information system should be physically implemented

Systems analyst – uses analysis and design techniques to solve business problems with information technology

What is required for successful business information systems?

7

The right hardware and softwareA team of talented, motivated people who

use information technology to achieve business goals

Introduction to Information Systems (IS)

8

System A group of related procedures for a particular

business function There may one system or a no.of sub-systems e.g.

Accounting, Admission, Payroll…Function

E.g, Payroll, Accounts, Admission …Procedure

The rules and regulations required to accomplish the functions. E.g. procedure for admission function…

IS Components9

The effective use of H/W, S/W, Data, Procedures and People to achieve specific results that support the company’s business objective

H/W Physical layer of IS

S/W System S/W Application S/W

IS Components10

Data Facts and Figures used to take part in processing for

informationProcedures

The activities that must be performed by the users who work in the system

People Users, End Users, Programmer…

Characteristics of IS11

TimelinessCompletenessConciseness – To the pointUnderstandable