Aggregation: One way of speeding up query performance. Facts are
summed up for selected dimensions from the original fact table.
The resulting aggregate table will have fewer rows, thus making
queries that can use them go faster. Attribute: Attributes
represent a single type of information in a dimension. For
example, year is an attribute in the Time dimension. Conformed
Dimension: A dimension that has exactly the same meaning and
content when being referred to from different fact tables. Data
Mart: Data marts have the same definition as the data warehouse
(see below), but data marts have a more limited audience and/or
data content. Data Warehouse: A warehouse is a subject-oriented,
integrated, time-variant and non-volatile collection of data in
support of management's decision making process (as defined by
Bill Inmon). Data Warehousing: The process of designing,
building, and maintaining a data warehouse system. Dimension:
The same category of information. For example, year, month, day,
and week are all part