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Variable maps, using the Context Service business service, help the controller workflow to construct inputs to PSP procedures and process the output of PSP procedures. The Context Service business service optimizes the querying and updating of row set data by reading data directly from the active business component, thereby eliminating unnecessary SQL queries. Context Service provides a row-level delta that determines which line items to update. Batched SQL eliminates unnecessary network round-trips.
NOTE: Most PSP procedures use the Context Service business service, but it is not required for all PSP procedures. For example, a Web service could invoke Siebel Pricer with a property set directly generated from the input XML document by XSLT, without using the Context Service business service.
For more information about variable maps and the Context Service business service, see Variable Maps.
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