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Data dictionary

A repository of information about data, such as its meaning, relationships to other data, origin, usage, and format. A data dictionary manages data categories such as aliases, data elements, data records, data structure, data store, data models, data flows, data relationships, processes, functions, dynamics, size, frequency, resource consumption, and other userdefined attributes.

Database Administrator

The person responsible for managing data at a logical level, namely data definitions, data policies, and data security.

Database

A collection of logically related data stored together in one or more computerized files; an electronic repository of information accessible via a query language interface.

Database Management System

A software system that controls storing, combining, updating, retrieving, and displaying data records.

Data store

A repository of data; a file.

Demonstration

A procedure to verify system requirements that cannot be tested otherwise.

Deliverable

A formal product that must be delivered to (and approved by) the customer.

Delivered system documentation

Includes the Software Development Document, User Manual, Maintenance Manual, and Operations Manual.

Design phase

The period of time in the Systems Development Life Cycle during which the designs for architecture, software components, interfaces, and data are created, documented, and verified to satisfy system requirements.

Development phase

The period of time in the Systems Development Life Cycle to convert the deliverables of the Design phase into a complete system.

Disposition phase

The period time when a system has been declared surplus and/or obsolete, and the task performed is either eliminated or transferred to other systems.

Disposition Plan

A formal plan providing the full set of procedures necessary to end the operation or the system in a planned, orderly manner and to ensure that system components and data are properly archived or incorporated into other systems.

Document

Written and/or graphical information describing, defining, specifying, reporting, or certifying activities, requirements, procedures, reviews, or results. See product.

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