|
When is Business Themes+ Data Mart matrix used?
Please refer to Data-Marts
+ Business themes matrix in Data Warehouse
Dimensional Modeling Process for the context of the template
This template is the first one to
be used in the dimensional modeling phase. First one has to lay
down the big picture on what all data marts will be needed to fulfill
the needs of the business themes as mentioned in Data Warehouse Business Requirement Report Business Requirement Report
.
Why is it used?
As mentioned in the concepts of
dimension modeling, the data mart is the building block of a data
warehouse. A Data
Warehouse is the combination multiple star-Schemas
with
each schema representing a data mart (mostly).
What it contains?
it contains a simple two dimensional
mapping with list of data marts on one side and list of business
themes on other axis. |
