Unit 1

Question 1

What is Systems Analysis and Design?

Answer 1

Systems analysis is the process of understanding current business processes and suggesting in detail how the business processes can be improved

Question 2

What is Systems Design

Answer 2

Systems design is the process of developing and specifying in detail the technical specifications of IT-based systems that will implement the improved business processes

Question 3

Systems Analysis

Answer 3

What is required for the new system to solve the problem

Question 4

System design

Answer 4

How the system will operate to solve the problem

Question 5

Systems Thinking

Answer 5

System
An inter-related set of components with an identifiable boundary, working together to achieve a common goal

Components
Component Relationships
Boundary
Goal
Environment
Input/Output/Interface
Constraints

Question 6

System Elements

Answer 6

Organs, such as the lungs, that deliver oxygen to the circulatory system.
The Respiratory System
Locomotives, wagons, tunnels, railroads, switches, engineers, conductors, etc.
A Railroad System
Microprocessor(s), printed circuitry, keyboard, monitor, mouse, operating system, storage, etc.
A Computer
Receipts, canceled checks, correspondence, folders, and file cabinets.
A Filing System
Canals, ditches, dams, sprinklers, etc.
An Irrigation System
Trees, vegetation, animals, humans, insects, rivers, etc.
The Amazon Ecosystem

Question 7

Information Systems

Answer 7

Information systems are systems that process data into information.

Developing information systems and software applications involves highly abstract concepts that have very concrete outcomes

Question 8

Types of Information SystemsBased on Support for Decision making

Answer 8

Transaction Processing SystemsManagement Information SystemsDecision Support SystemsExpert Systems

Question 9

Types of Information Systems

Answer 9

Transaction Processing Systems (TPS)The goal is to collect and store data that arise out of business transactions in a efficient manner; does limited processing of dataExamples: Point of Sale systems, order processing systems

Management Information Systems (MIS)The goal is to process data stored by TPS and produce high quality information; more complex processing, consisting primarily of query retrieval and summarizing operationsExamples: Sales analysis and report generation applications

Question 10

Types of Information Systems (Cont..)

Answer 10

Decision Support Systems (DSS)The goal is to actively support managerial decision making process; uses mathematical models such as statistical and operations research modelsExamples: Forecasting systems, production scheduling systemsExpert Systems

(ES)The goal is to make decisions like human experts; uses mathematical models and qualitative knowledge such as logical deductionExamples: diagnosis (medical, troubleshooting) systems