Getting Started with InfoSphere Data Architect
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Chapter 8 – Model Mapping and Discovery 143<br />
8<br />
Chapter 8 – Model Mapping and Discovery<br />
Information can come from different data sources, and integration of such data is a common requirement<br />
in any enterprise. When an existing data source has to be integrated <strong>with</strong> an acquisition data source,<br />
understanding the metadata is very crucial.<br />
Metadata is data about the data; it stores the data type of the data, purpose of the data, and other<br />
identifying information. Understanding metadata helps to visualize how the different data sources are<br />
related to each other and creating mappings and relationships amongst them. Mapping models help you<br />
map this metadata among a variety of data sources.<br />
IBM <strong>InfoSphere</strong> <strong>Data</strong> <strong>Architect</strong> provides the following metadata integration tools:<br />
• Define relationships and mappings between data sources<br />
• Set transformation rules<br />
• Discover relationships<br />
• Generate scripts which could be deployed to a database<br />
8.1 Mapping models: The big picture<br />
Figure 8.1 – The big picture
Change language