V.4.1.2 C-FIND SCU Behavior

All C-FIND SCUs shall be capable of generating query requests that meet the requirements of the Query Search Method (see V.

Required Keys and Optional Keys associated with the Query may be contained in the Identifier.

An SCU conveys the following semantics using the C-FIND requests and responses:

— The SCU requests that the SCP perform a match of all keys specified in the Identifier of the request against the information it possesses of the Query specified in the request.

— The SCU shall interpret Pending responses to convey the Attributes of a match of an item.

— The SCU shall interpret a response with a status equal to Success, Failure, or Cancel to convey the end of Pending responses.

— The SCU shall interpret a Failure response to a C-FIND request as an indication that the SCP is unable to process the request.

— The SCU may cancel the C-FIND service by issuing a C-FIND-CANCEL request at any time during the processing of the C-FIND. The SCU shall recognize a status of Cancel to indicate that the C-FIND-CANCEL was successful.