CS432 Study Guide - Final Guide: Data Flow Diagram, Graphical Model, Information System

• School: University of Waterloo
• Department: Computer Science
• Course: CS432
• Professor: Suzanne Safayeni

Document Summary

System: set of interrelated and interdependent components that function together to achieve a common goal/function. Information system (is): set of interrelated and interdependent componenets that interact together to convert enterprise"s data into information. Business information system (bis): set of interrelated and interdependent components, interacting together to support operations/management of info. Data: raw, unevaluated facts describing people, objects, events may convey some meanings, but generally not useful in isolation. Information: processed data useful to someone, tells you something you didn"t know, or confirm what you suspected. Networks: connectivity among computers -> share software and hardware. Software: programs play an important role in developing information system. Such decisions affect organization in a short term. Need internal data, use detailed reports about current operations. Concerned with tactical issues and short term planning. Use reports generated by management is (mis) Interested in historical/exception reports generated by mis- detailed analysis and extensive data computation. Analyze enterprise"s performance, compare it with industry norms.