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39 Cards in this Set

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  • Back
A piece of information describing a particular entity.
Attribute
The logical description of the entire database showing all the data elements and relationships among them.
Conceptual Schema
A special organizational function for managing the organization's data resources, concerned with information policy, data planning, maintenance of data dictionaries, and data quality standards.
Data Administration
Activities for detecting and correcting data in a database or file that are incorrect, incomplete, improperly formatted, or redundant. Also known as data scrubbing.
Data Cleansing
The component of a database management system that defines each data element as it appears in the database.
Data Definition Language
An automated or manual tool for storing and organizing information about the data maintained in a database.
Data Dictionary
A field.
Data Element
The presence of different values for same attribute when the same data are stored in multiple locations.
Data Inconsistency
A language associated with a database management system that end users and programmers use to manipulate data in the database.
Data Manipulation Language
A small data warehouse containing only a portion of the organization's data for a specified function or population of users.
Data Mart
Analysis of large pools of data to find patterns and rules that can be used to guide decision making and predict future behavior.
Data Mining
A survey and/or sample of files to determine accuracy and completeness of data in an information system.
Data Quality Audit
The presence of duplicate data in multiple data files.
Data Redundancy
A database, with reporting and query tools, that stores current and historical data extracted from various operational systems and consolidated for management reporting and analysis.
Data Warehouse
A group of related files.
Database
A collection of data organized to service many applications at the same time by storing and managing data so that they appear to be in one location.
Database (rigorous definition)
Refers to the more technical and operational aspects of managing data, including physical database design and maintenance.
Database Administration
Special software to create and maintain a database and enable individual business applications to extract the data they need without having to create separate files or data definitions in their computer programs.
Database Management System (DBMS)
A computer in a client/server environment that is responsible for running a DBMS to process SQL statements and perform database management tasks.
Database Server
A database that is stored in more than one physical location. Parts or copies of the database are physically stored in one location, and other parts or copies are stored and maintained in other locations.
Distributed Database
A person, place, thing, or event about which information must be kept.
Entity
A methodology for documenting databases illustrating the relationship between various entities in the database.
Entity-Relationship Diagram
A grouping of characters into a word, a group of words, or a complete number, such as a person's name or age.
Field
A group of records of the same type.
File
One type of logical database model that organizes data in a treelike structure. A record is subdivided into segments that are connected to each other in one-to-many parent-child relationships.
Hierarchical DBMS
An approach to data management that organizes data as a network of nodes linked in any pattern the user specifies; the nodes can contain text, graphics, sound, full-motion video, or executable programs.
Hypermedia Database
Formal rules governing the maintenance, distribution, and use of information in an organization.
Information Policy
A field in a record that uniquely identifies instances of that record so that it can be retrieved, updated, or sorted.
Key Field
Older logical database model that is useful for depicting many-to-many relationships.
Network DBMS
The process of creating small stable data structures from complex groups of data when designing a relational database.
Normalization
An approach to data management that stores both data and the procedures acting on the data as objects that can be automatically retrieved and shared; the objects can contain multimedia.
Object-Oriented DBMS
A database management system that combines the capabilities of a relational DBMS for storing traditional information and the capabilities of an object-oriented DBMS for storing graphics and multimedia.
Object-Relational DBMS
Capability for manipulating and analyzing large volumes of data from multiple perspectives.
On-Line Analytical Processing (OLAP)
The close relationship between data stored in files and the software programs that update and maintain those files. Any change in data organization or format requires a change in all the programs associated with those files.
Program-Data Dependence
A group of related fields.
Record
A type of logical database model that treats data as if they were stored in two-dimensional tables. It can relate data stored in one table to data in another as long as the two tables share a common data element.
Relational DBMS
The standard data manipulation language for relational database management systems.
Structured Query Language (SQL)
The specific set of data from the database that is required by each user or application program.
Subschema
A row or record in a relational database.
Tuple