BMGT 326 - Key Terms Exam 2

BMGT 326 - Key Terms Exam 2 - Chapter 5 agents People or...

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Chapter 5 agents People or organizations that participate in events. anomalies Errors that otherwise might occur when adding, changing, or deleting data stored in the database. applications approach to business event processing Under this approach, each application collects and manages its own data, generally in dedicated, separate, physically distinguishable files for each application. artificial intelligence Decision support systems can imitate human decision making when confronting situations that are complex and ambiguous. This ability in computers is often referred to as artificial intelligence. block coding Groups of numbers are dedicated to particular characteristics of the objects being identified. cardinality A characteristic in each relationship that shows the degree to which each entity participates in the relationship. centralized database approach to business event processing In this approach, facts about events are stored in relational database tables instead of separate files, which solves many of the problems caused by data redundancy. check digit A type of programmed edit in which an extra digit—a check digit—is included in the identification number of entities such as customers and vendors. Through mathematical formulae, the computer uses the check digit to verify that the identification number is input correctly. classifying The process of grouping or categorizing data according to common attributes. coding The creation of substitute values, or codes. composite primary key The primary key formed by combining two or more columns in a table. data independence Decoupling of data from the system applications (making the data independent of the application). A major difference between the database approach and the applications approach. data mining The exploration, aggregation, and analysis of large quantities of varied data from across the organization. Used to better understand business processes, trends, and opportunities to improve efficiency and effectiveness, as well as to discover anomalies. data model A model that depicts user requirements for data stored in a database. data redundancy Data stored in multiple locations within a system. data warehousing The use of information systems facilities to focus on the collection, organization, integration, and long-term storage of entity-wide data. Data warehousing provides users with easy access to large quantities of varied data from across an organization to improve decision-making capabilities. database management system (DBMS) A set of integrated programs designed to simplify the tasks of creating, accessing, and managing data. decision aid Information tools that can help decision makers to make better decisions. decision support systems (DSS)
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This note was uploaded on 11/19/2010 for the course BMGT 326 taught by Professor Staff during the Spring '08 term at Maryland.

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BMGT 326 - Key Terms Exam 2 - Chapter 5 agents People or...

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