OLAP

Acronym for On-line Analytical Processing - a set of tools and techniques in DSS environments.

Operational Data

Data used to support the daily processing a company does

Operational Data Model

A data model of current transaction processing business systems. This model is used to understand the availability of data for the data warehouse. 

Operational Data Model

A data model whose structure is designed for systems that carry out record level or element level updates. Typically this type of data model is highly "normalized".

Operational Data Store

A subject oriented database similar to in structure to a data warehouse whose refresh frequency approaches real time

Operational System

Computer systems that run the business, including transaction processing systems.

Organizationally Structured

Refers to a level of the data warehouse architecture, and the data found at that level. Also known as "atomic", "corporate" or "current detail" data, this level, the heart of the data warehouse is structured to meet the informational requirements of the entire organization. Data that has been archived ("archived detail") is also considered to belong to this level.