scope:

This part of ISO/IEC 9646 specifies requirements and gives guidance concerning the realization of a means of testing IUTs in conformance with a reference OSI standardized ATS, specifies in compliance with ISO/IEC 9646-2. These requirements are limited to those aspects of a means of testing which can be mapped on to the abstract testing functions defined in ISO/IEC 9646-1, or which are essential to a proper use of the standardized ATS. Such aspects might include a facility to produce conformance logs, or the progression of the PIXIT proforma. Further implementation details of test systems and upper testers are outside the scope of this part of ISO/IEC 9646.