Databases And Their Context Flashcards
Data Processing System
An automated system for processing the data for the records of an organization.
Application Program
A computer program that performs a specific task of practical value in a business situation.
Random access processing
A file access method the provides direct access to a specific record.
Key
Data fields that uniquely identify a record in a file
Information System
An automated system which organizes data to produce information.
Management Information System
A system that provides information to management.
Data
Isolated facts.
Information
Organized or summarized data.
Database
A collection of interrelated data processed by one or more application systems.
Database System
A database , a database management system and appropriate hardware and personnel.
Database Management system
System software that facilitates the management of a database.
Homonym
A term that has different meanings in different contexts.
Synonyms
Terms that mean the same thing.
Data Model
A conceptual method of structuring data.
Hierarchical Model
A data model.
Pointer
A physical address which identifies where a record can be found on disk.
Child
An owned record in a hierarchical relationship.
Parent
An owner records in a hierarchical relationship.
Network
A data relationship in which a record can be owned by records from more than one file.
Client/server platform
A local area network consisting of client computers which receive services from a server computer.
Databases server
A program running on server hardware to provide database services to client machines.
Graphical User Interface (GUI)
Screens and functions that provide a graphical means for an end user to access a computer system.
Open systems
The concepts of connecting a variety of computer hardware and software to work in concert to achieve user goals.
Interoperability
The state of multiple heterogeneous systems communicating and contributing to the completion of a common task.
Metadata
Data in the data dictionary which describe the databases.
Users
People who need information from the database to carry out their primary business responsibility.
Data view
A definition of a restricted portion of the database also called a view.
Practitioners
People responsible for the database system and its sociated application software.
Procedure
Written instructions describing the steps needed to accomplish a given task in a system.
