ISO 9646 is a framework for conformance testing. ISO 9646 incorporates the TTCN language as ISO 9646-3. The ISO 9646 is a seven part standard as shown below
Testing Configuration or Architecture
One part of the standard is Test specification/Configuration. How is the test is set up, the responsibilities of different entities involved and the handling of the connections between these are all regulated in the standard.
PICS and PIXIT
The important item in the configuration of a test is to extract the abstract information from the test and this information can be provided during start up of the execution. The Protocol Implementation Conformance Statement (PICS) and Protocol Implementation Extra information (PIXIT) is structures as informal questionnaire. The answers can be mapped to parameters in TTCN and imported. PICS and PIXT contains different information.
PICS – It contains information regarding protocol. This could be optional parts, specific restrictions or adds-on. This information will serve as basis for determining which test cases are applicable.PIXIT – It contains information regarding physical set up and connection of the test that is not part of the protocol. This could be information regarding system under test hardware, socket.
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