Database Reference
In-Depth Information
Figure 4. Facts f .xml (a) and dimension d. xml (b) graph structure
ETL Component
the XML data warehouse. This component
is based on user requirements;
2.
An actual warehouse component that man-
ages XML data with respect to our XML
data warehouse reference model;
The ETL component in X-WACoDa is actually a
set of tools that form a chain of data extraction,
transformation and loading into the XML data
warehouse.
First, SMAIDoC is a multi-agent system that
allows complex data extraction and transforma-
tion into a predefined XML format (Boussaïd et
al. , 2003). SMAIDoC (Figure 6) consists of a set
3.
An analysis component that permits various
analyses (OLAP, data mining...) over the
data warehouse.
Figure 5. X-WACoDa software platform architecture
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