DS 220 Lecture Notes - Lecture 1: Database, Result Set, Data Integrity
Document Summary
Data: raw facts that have not yet been processed to reveal their meaning to the end user: raw indicates that the facts have not been processed yet to reveal their meaning. Information: result of processing raw data to reveal its meaning. Information consists of transformed data and facilities decision making. Information is used to reveal the meaning of data: accurate, relevant, and timely information is the key to good decision making, good decision making is the key to organizational survival in a global environment. Data management a discipline that focuses on the proper generation, storage and retrieval of data. Database shared, integrated computer structure that stores a collection of: end user data: raw facts of interests to an end user, metadata: data about data, through which the end user is integrated and managed. Database management system a collection of programs that manages the database structure and controls access to the data stored in the database.
