EIN 5117 Lecture Notes - Lecture 1: Data Warehouse, Information System, Management System
Document Summary
Introduction to information systems: data is generally referred to as raw facts. Information: collection of data organized in such a way that they have value beyond the facts themselves: process: set of logically related tasks performed to achieve a defined outcome. Turing data into information: knowledge: awareness and understanding of a set of information and the ways it can be made useful to support a task. The process of defining relationships among data to create useful information requires knowledge. Knowledge workers: individuals who understand how to use information for their task: types of data: Video: select organize manipulate, data must be accurate to be used effectively, an information system is a set of interrelated elements that: Provides a feedback mechanism to monitor and control its operation to make sure it continues to meet its goals and objectives. Information systems can be divided into: personal, group, enterprise, key organizational complements:
