Sunday, December 16, 2007
|Canonical model||A data model that represents the inherent|
structure of data without regard to either
individual use or hardware or software
|Cardinality||no of unique rows divided by total no of|
|Cell||A single point in a CUBE.|
|Conceptual Schema||A consistent collection of data structures|
expressing the data needs of the organization.
This schema is a comprehensive, base level,
and logical description of the environment in
which an organization exists, free of physical
structure and application system considerations.
|Condensation||The process of reducing the volume of data|
managed without reducing the logical
consistency of the data.
|Connector||A symbol used to indicate that one occurrence|
of data has a relationship with another
occurrence of data. Connectors are used
in conceptual data base design and can be
implemented hierarchically, relationally, in
an inverted fashion, or by a network.
|Contention||Tthe condition that occurs when two or more|
programs try to access the same data at the
|Cooperative Processing||Tthe ability to distribute resources (programs,|
files and data bases) across the network.
|Corporate Data||All the databases of the company.This includes|
legacy systems,old and new transaction
systems,general business systems,client/server databases,data warehouses and data marts.
|Corporate Information Warehouse (CIF)||The architectural framework that houses the|
ODS, data warehouse, data marts, i/t interface,
and the operational environment. The cif is held together logically by metadata and physically
by a network such as the Internet.
|Cube – (also Hypercube, Multi-dimensional Cube)||The fundamental structure for information in|
an OLAP system. A structure that stores multi-dimensional information, having one CELL
for each possible combination of dimensions.