Information System and Systems Analysis Chapter 4

An information system is a collection of people, procedures, software, hardware, data, and the ______

Competent end users need to understand how the information flows as it moves through an ______

It is easy to overlook people as one of the parts of an information system. Yet this is what personal computers are all about—making people, and the end users like you, more ______

A program consists of step-by-step instructions that tell the computer how to do its work. The purpose of the software is to convert ______ into information.

The equipment that processes the data to create information is called ______.

MIS is the use of information technology, people, and business processes to record, store and process data to produce information that decision-makers can use to make day-to-day decisions. MIS provides the information needed for decision-makers to make effective decisions. MIS systems provide a smooth way of communication within and outside the organization. MIS records all an organization's business transactions and provides a reference point. MIS produces standardized reports to support decision-making by middle managers. MIS integrates data and summarizes details from databases in a structured form. MIS produces predetermined reports, including periodic reports, exception reports, and demand reports. MIS is an abbreviation for ______.

11-32 ❑ Information systems managers oversee the work of ______, computer specialist, systems analysts, and other computer professionals

11-35 a) Name and discuss the five common functions of most organizations. b) Discuss the roles of the three kinds of ______ in a corporation. c) What are the four most common computer-based information systems. d) Describe the different reports and their roles in managerial decision making. e) What is the difference between an office automation system and a knowledge work system. 11-36 Part 2: Systems Analysis and Design 37 Learning Objectives ❑ Describe the six phases of the systems life cycle. ❑ Identify information needs and formulate possible solutions. ❑ Analyze existing information systems and evaluate the feasibility of alternative systems. 11-38 Learning Objectives ❑ Identify, acquire, and test new system software and hardware. ❑ Switch from an existing information system to a new one with minimal risk. ❑ Perform system audits and periodic evaluations. ❑ Describe prototyping and rapid applications development. 11-39 ❑ Most people in an organization are involved with an information system of some kind. ❑ For the organization to create and use the system requires thought and effort. ❑ In this chapter, you learn about history of software development methodology, six step process for performing systems analysis and design. 11-40 11-41 41 11-42 42 11-43 43 11-44 44 Six-phase problem-solving procedure for examining and improving an information system 11-45 The preliminary investigation determines the need for a new information system 11-46 Data is collected about the present system and then analyzed to determine the new requirements 11-47 ❑ Define the alternatives, select the best system, and write a systems design report ❑ Evaluate systems according to economic feasibility, technical feasibility, and operational feasibility 11-48 In the development phase, you acquire the software and hardware, and test the new system 11-49 ❑ Also known as conversion ❑ Converting from the old system to the new one ❑ Training people to use the new system ❑ Types of conversion approaches include: ◦ ◦ ◦ ◦ Direct Parallel Pilot Phased 11-50 Systems maintenance is a very important, ongoing activity that includes a systems audit and a periodic evaluation 11-51 Alternatives to the systems life cycle may be used if the system is not feasible ◦ Prototyping is building a model ◦ Rapid applications development (RAD) 11-52 ❑ A systems analyst plans and designs new systems, following the systems life cycle ❑ Requires a Bachelor’s degree in Computer Science or Information Systems and technical experience ❑ Can expect to earn an annual salary of RM 48,306 to RM 72,600 11-53 The Challenge of Keeping Pace ◦ To stay competitive with today’s fast business pace, new technologies must be incorporated ◦ Increased use of RAD and prototyping ◦ Increased use of outside consulting 11-54 a) What is a system. What are the six phases of the systems life cycle. Why do corporations undergo this process. b) What are the tools used in the analysis phase. What is top-down analysis. How is it used. c) What is system maintenance. When does it occur. d) Explain prototyping and RAD. When might they be used by corporations. 11-55.

11-47 ❑ Define the alternatives, select the best system, and write a systems design ______

11-52 ❑ A systems analyst plans and designs new systems, following the systems life ______