Midterm _1 study guide

Midterm _1 study guide - MGT 452 Midterm#1 Study Guide Exam...

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MGT 452 Midterm #1 Study Guide Exam date: Monday February 18, 2008 This study guide is designed to be just that, a guide . It is not intended to replace the book or notes, but rather to help you focus your studying. It is brief because the details are in the book and notes. Use this guide along with the book and notes to study for the exam. Topics that are not included on the study guide will not be on the exam. Note: Pay attention to things I specifically tell you to be prepared to do. Highlighted terms are probably important (be sure to know these). The exam will consist of multiple-choice, true/false, matching, and short answer (problems and mini-essay). Roles in Information Systems There are many roles that are involved in the development of information systems including: System Owners – Pay for the system to be built and maintained Users – Use the system to perform or support the work to be completed Designers – Design the system to meet the users’ requirements Builders – Construct, test, and deliver the system into operation Analysts - Facilitate the development of information systems and computer applications by bridging the communications gap that exists between non-technical system owners and users and technical system designers and builders. Vendors and Consultants - Sell hardware, software, and services to businesses for incorporation into their information systems Know about differences in perspectives between these stakeholder groups. Role of the systems analysts System Thinking The goal in systems development is the creation of information systems that meet an organization’s need and support the organization’s functions or processes. A system is comprised of inputs , process , and output . When we say system , sometimes we are talking about the computer based system and sometimes we are talking about the “real world “system of business processes. It is important to recognize that both are important and to be able to transition back and forth between the two perspectives. Since we are interested in systems , it is important to understand the characteristics of a system:
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Components - subsystems Interrelationship between components – dependence of one component on another Purpose – what the system is trying to do Environment – everything external to the system that interacts with it Interfaces – where the system meets the environment or subsystems meet each other Input – what goes into the system Output – what comes out Constraints – limits (either internal or external) placed on the system Know these terms. Be able to recognize and discuss systems in terms of these characteristics. Related to these it is also important to understand concepts related to systems Decomposition – breaking the system into components Modularity –being able to change part of the system without changing the entire system, making the components of comparable size Coupling – the extent to which subsystems are dependent on each other
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Midterm _1 study guide - MGT 452 Midterm#1 Study Guide Exam...

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