Every time OpenIDM creates an object through synchronization, it creates a link between the source and target objects. OpenIDM then uses the link to determine the object's situation during later synchronization operations.
Initial, bulk synchronization operations can involve correlating many objects that exist both on source and target systems. In this case, OpenIDM uses correlation queries to find target objects that already exist, and that correspond to source objects. For the target objects that match a correlation query, OpenIDM needs only to create a link, rather than a new target object.
Correlation queries run against target resources. The query syntax therefore depends on the target system, and is either specific to the data store underlying the OpenIDM repository, or to OpenICF query capabilities.
