OMIS 3730 Chapter Notes - Chapter 1-3: Enterprise Architecture, Database Application, Subtyping

• School: York University
• Department: Operations Management and Information System
• Course: OMIS 3730
• Professor: Michael Rochon

Document Summary

Data: stored representations of objects and events that have meaning and importance in the user"s environment. Information: data that have been processed in such a way that they can increase the knowledge of the person who uses it. Metadata: data that describes the properties or characteristics of end-user data and the context of that data. Database application: an application program (or set of related programs) that is used to perform a series of database activities (create, read, update, and delete) on behalf of database users. Data model: graphical systems used to capture the nature and relationships among data. Data warehouse: an integrated decision support database whose content is derived from the various operational databases. Constraint: a rule that cannot be violated by database users. Database: an organized collection of logically related data. Entity: a person, place, object, event, or concept in the user environment about which the organization wishes to maintain data.