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CIS323 - LaTech
Chapter 1 Flashcard Set
23
Other
Post-Graduate
09/14/2010

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Term
Data
Definition
Stored representations of objects and events that have meaning and importance in user's environment.
Term
Database
Definition
An organized collection of logically related data.
Term
Information
Definition
Data that have been processed in such a way as to increase the knowledge of the person who uses the data.
Term
Metadata
Definition
Data that describes the properties or characteristics of end-user data and the context of those data.
Term
Database Application
Definition
An application program that is used to peform a series of database activities on behalf of database users.
Term
Data Model
Definition
Graphical systems used to capture the nature and relations among data.
Term
Entity
Definition
A person, place, an object, an event, or a concept in the user environment about which the organization wishes to maintain data.
Term
Database Management System(DBMS)
Definition
A software system that is used to create, maintain, and provide controlled access to user databases.
Term
Data Independence
Definition
The separation of data descriptions from the application programs that use the data.
Term
User view
Definition
A logical description of some portion of the database that is required by a user to perform some task.
Term
Constraint
Definition
A rule that cannot be violated by database users.
Term
Computer-aided software engineering (CASE) tools
Definition
Software tools that provide automated support for some portion of the systems development process.
Term
Repository
Definition
A centralized knowledge base of all data defintions, data relationships, screen and report formats, and other system components.
Term
Enterprise resource planning (ERP)
Definition
A business management system that integrates all functions of the enterprise, such as manufacturing, sales, finance, marketing, inventory, accounting, and human resources. ERP systems are software applications that provide the data necessary for the enterprise to examine and manage its activities.
Term
Data Warehouse
Definition
An integrated decision support database whose content is derived from the various operational databases.
Term
Enterprise data modeling
Definition
The first step in database development, in which the scope and general contents of organizational databases are specified.
Term
Systems development life cycles(SDLC)
Definition
The traditional methodology used to develop, maintain, and replace information systems.
Term
Conceptual Schema
Definition
A detailed, technology-independent specification of the overall specification of the overall structure of organizational data.
Term
Logical Schema
Definition
The representation of a database for a particular data management technology.
Term
Physical Schema
Definition
Specifications for how data from a logical schema are stored in a computer's secondary memory by a database management system.
Term
Prototyping
Definition
An iterative process of systems development in which requirements are converted to a working system that is continually revised through close work between analysts and users.
Term
Agile software development
Definition
An approach to database and software development that emphasizes "individuals and interactions over processes and tools, working software over comprehensive documentation, customer collaboration over contract negotiation, and response to change over following a plan."
Term
Project
Definition
A planned undertaking of related activities to reach an objective that has a beginning and an end.
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