Scope 1.1 This part of ISO/IEC 9646 specifies requirements on both the test laboratory and the client, for the conduct of the conformance assessment process. The requirements are those necessary to achieve comparability of results of tests on similar implementations performed by different test laboratories. Implementations could support one base specification only, multiple base specifications or one or more profile(s) based on one or more base specifications. This part of ISO/IEC 9646 also provides some guidance on the conformance assessment process. 1.2 The requirements include a) requirements for the testability of the implementation with respect to Abstract Test Methods; b) general requirements on the test laboratory and the client applicable to any conformance assessment process; c) exchange of technical and administrative information, including a System Conformance Statement, an Implementation Conformance Statement for each relevant base or profile specification, and Implementation eXtra Information for Testing for each Abstract Test Suite (ATS) to be used for testing each base specification, combination of base specifications or component of each profile, as appropriate, plus for profile testing the Profile Test Specification Summary for each profile; d) cooperation between the test laboratory and the client to reach an agreement on the definition of the Implementation Under Test), on the Abstract Test Methods and ATSs to be used and on the conditions under which testing will be performed; e) requirements for the structure and content of the conformance test reports that document the results of the conformance assessment process. 1.3 This part of ISO/IEC 9646 is applicable equally to those test laboratories which are affiliated to suppliers or procurers, and those which are independent. 1.4 This part of ISO/IEC 9646 is applicable to conformance assessment of implementations of — OSI and Integrated Services Digital Network (ISDN) base specifications that comply with the relevant requirements for testability in ISO/IEC 9646-2, and/or — OSI and ISDN profile specifications that comply with the relevant requirements for testability in ISO/IEC 9646-6,based on — conformance testing specifications specified in compliance with ISO/IEC 9646-2, — and if appropriate based on Profile Test Specification Summaries and Profile Specific Test Specifications specified in compliance with ISO/IEC 9646-6, and using Means of Testing (MOT) in compliance with ISO/IEC 9646-4. 1.5 The following are outside the scope of this part of ISO/IEC 9646: a) the production of diagnostic trace information, additional to that in the conformance log, resulting from testing performed by the test laboratory, and the supply to the client; b) aspects of test laboratory operations which are not specific to conformance testing implementations of OSI base specifications and profiles; c) accreditation of test laboratories; d) certification of implementations of OSI protocols.