The Find Matching Services transaction is used to express queries against the CSD schema. This schema is found in ITI TF-2x: Appendix W. The query against the CSD schema may be expressed as an invocation of a stored query or (optionally) as a well-formed ad hoc XQuery.

The query is submitted by the Service Finder to the Care Services InfoManager by constructing an XML document expressing the query and executing an HTTP POST transaction. The Care Services InfoManager executes the query and returns the results in a response document.