SAS Articles
External Schema
a logical description of a user's method of organizing and structuring data.
Fact Table
The tables which are extracted from heterogeneous sources and used in the Data
Wareahouse
Factless Fact
A fact table without any metrics in it
Flat File
a collection of records containing no data aggregates, nested repeated data
items, or groups of data items.
Functional Decomposition
the division of operations into hierarchical functions that form the basis for
procedures.
Global Business Models
Provides access to information scattered throughout an enterprise under the
control of different divisions or departments with different databases and data
models. This type of data warehouse is difficult to build because it requires
users from different divisions to come together to define a common data model
for the warehouse.
Granularity
The level of detail of the data stored in a data warehouse.
Hetergeneous Environment
Within an enterprise, a network of different types of servers and databases.
Heuristic
the mode of analysis in which the next step is determined by the results of the
current step of analysis.
Hierarchy
The organization of data into a logical tree structure.
Homogeneous Environment
Within an enterprise, a network consisting of the same type of servers and
databases.
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