Information Systems Overview

The essential components of an information system are hardware, software, data, processes, and people.

Two types of information systems mentioned are transaction processing systems and knowledge management systems.

A systems analyst uses modeling, prototyping, and CASE tools, and must understand both technical and business aspects.

<p>Three popular system development approaches are structured analysis, object-oriented analysis, and agile methods.</p> Signup and view all the answers

<p>To create a physical model that satisfies all documented requirements.</p> Signup and view all the answers

<p>An organization's structure typically includes top managers, middle managers, knowledge workers, supervisors, team leaders, and operational employees.</p> Signup and view all the answers

<p>A completely functional and documented information system.</p> Signup and view all the answers

<p>A systems analyst must possess critical thinking skills and effective communication abilities.</p> Signup and view all the answers

<p>The purpose of using information technology in companies is to manage, access, communicate, and share information effectively.</p> Signup and view all the answers

<p>User involvement is critical to ensure the system meets the actual needs and expectations of its users.</p> Signup and view all the answers

<p>A well-designed system must be secure, reliable, maintainable, and scalable.</p> Signup and view all the answers

<p>Successful companies typically offer a mix of products, technical and financial services, consulting, and customer support.</p> Signup and view all the answers

<p>An object is a member of a class that possesses properties.</p> Signup and view all the answers

<p>Prototyping allows for continuous interaction between planning, analysis, and design tasks to refine the system.</p> Signup and view all the answers

<p>IT staff maintain, enhance, and protect the system.</p> Signup and view all the answers

<p>O-O methodology provides an easy transition to O-O programming languages like Java.</p> Signup and view all the answers

<p>Important decisions might be made before business or IT issues are thoroughly understood.</p> Signup and view all the answers

<p>A prototype based on careful fact-finding and modeling techniques can be an extremely valuable tool.</p> Signup and view all the answers

<p>CASE stands for Computer-Aided Systems Engineering.</p> Signup and view all the answers

<p>Structured analysis and object-oriented analysis.</p> Signup and view all the answers

<p>It is a time-tested and easy-to-understand method based on a predictive approach.</p> Signup and view all the answers

<p>It uses process models to graphically describe a system.</p> Signup and view all the answers

<p>It speeds up the implementation process.</p> Signup and view all the answers

<p>They focus on the processes involved in the system rather than the data.</p> Signup and view all the answers