Figure 1 illustrates IBM's replication solution.
Figure 1. IBM's Data Replication Solution and Product Environment
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The IBM Replication tools capture source data from DB2 and IMS. Captured data for copying is placed into staging tables before the Apply program reads the tables. Updates need to be captured only once. The updates can be subsequently staged at any number of sites, allowing for flexible data distribution.
For full refresh from relational sources, the Apply program reads directly from the relational source. Nonrelational refresh copies are copied into staging tables before being read by the Apply program.
The Apply program filters, enhances, distributes, and replicates data to the target databases. DataJoiner enables the Apply program to read from or write to multivendor sources and targets. NotesPump acts as an alternative Apply program for multivendor, ODBC, and Notes targets.