Chapter 1 Business Information Systems: An Overview

1. Chapter 1Business Information Systems: An Overview Management Information Systems, 3rd Edition Effy Oz

2. What is a problem? • Problems in business are undesirable situations • To solve problems, managers must make decisions to resolve the undesirable situation • Decisions involve selecting a solution from among several alternatives. • Good decisions require information • Information systems produce information (among other things) Management Information Systems, 3rd Edition Effy Oz

3. Data and Information • Data are defined as raw facts (dates, monetary amounts, names, addresses, account numbers, prices, etc.) • Information is processed data put into some context. Contextual elements include things like relevance, completeness, accuracy, or timeliness). • A system is a set of components that work together to produce a common goal (or goals) • An information system is a set of components whose goal is to produce information that benefits an organization Management Information Systems, 3rd Edition Effy Oz

4. Components of Information Systems • Components of an IS include hardware, software, data, people, and processes (see next slide) • Examples of each • Information technology refers to all technologies that facilitate the construction of IS • Importance of IS in business due to several trends • Price performance ratio of information technology • Variety and ingenuity of computer programs • Quick and reliable telecommunications due to the Internet • The Internet has in turn spurred global competition • Computer literacy of the workforce Management Information Systems, 3rd Edition Effy Oz

5. Figure 1.6 Components of an information system Six Components of Information Systems Management Information Systems, 3rd Edition Effy Oz

6. What does the word “processing” in data processing mean? • Most systems achieve their goals by taking inputs, processing the inputs, and producing outputs. • In the case of IS inputs are data and outputs are information. • Meaning of processing in this context • Arithmetic, statistics, sorting, grouping etc. • Systems viewpoint in problem solving . • Look for systems • Determine outputs and work backwards • Examples Management Information Systems, 3rd Edition Effy Oz

7. The Four Stages of Data Processing • Input: Data are collected and entered into computer. • Data processing: Data are manipulated into information using mathematical, statistical, and other tools. • Output: Information is displayed or presented. • Storage: Data and information are maintained for later use. • Note input and output are used slightly differently in this context Management Information Systems, 3rd Edition Effy Oz

8. Computer Equipment for Information System • Input devices introduce data into the IS. • The computer processes data through the IS. • Output devices display information. • Storage devices store data and information. Management Information Systems, 3rd Edition Effy Oz

9. Types of Information Systems • Transaction Processing Systems (TPS) • Record data and perform basic processing • Cash registers and ATMs • Management Information Systems (MIS) • Use recorded transactions and other data to produce information for problem solving and decision making. Management Information Systems, 3rd Edition Effy Oz

10. Types of Managerial IS • Decision Support Systems (DSS) • Contain models, or formulas, that manipulate data into information • Often answer “what if?” questions • Group Decision Support Systems (GDSS) help groups generate ideas, establish priorities, and reach decisions • Executive Information Systems (EIS) • Can gather information from vast amounts of data for high-level executives • Highly useful in control and planning Management Information Systems, 3rd Edition Effy Oz

11. ISs in Functional Business Areas • Accounting • Record business transactions, produce periodic financial statements, and create reports required by law • Finance • Organize budgets, manage the flow of cash, analyze investments, and make decisions that could reduce interest payments and increase revenues Management Information Systems, 3rd Edition Effy Oz

12. ISs in Functional Business Areas • Marketing • Analyze demand for various products in different regions and population groups • Human Resources • Help with record keeping and employee evaluation Management Information Systems, 3rd Edition Effy Oz

13. ISs in Different Business Sectors • Manufacturing • Control inventory, process customer orders, prepare production schedules, perform quality assurance, and prepare shipping documents • Government • Tax authorities, national insurance and welfare agencies, defense departments, economic organizations, immigration authorities • Service • ISs are often the backbone of service organizations Management Information Systems, 3rd Edition Effy Oz

14. ISs in Different Business Sectors • Retail • Some retail stores (e.g., Wal-Mart, Kmart) are now linked to communication networks by satellite. • Management can determine which items move quickly and which do not. • New Businesses • ISs have made new products and services possible, such as credit reports and shipment tracking. Management Information Systems, 3rd Edition Effy Oz

15. Ethical and Societal IssuesThe Dark Side of IS/IT • Consumer Privacy • Organizations collect (and sometimes sell) huge amounts of data on individuals. • Employee Privacy • IT supports remote monitoring of employees, violating privacy and creating stress. • Freedom of Speech • IT increases opportunities for pornography, hate speech, intellectual property crime, and other intrusions; prevention may abridge free speech. Management Information Systems, 3rd Edition Effy Oz