This International Standard specifies the framework, concepts and methodology for testing and criteria to be achieved to claim conformance to the family of ISO geographic information standards. It provides a framework for specifying abstract test suites (ATS) and for defining the procedures to be followed during conformance testing. Conformance may be claimed for data or software products or services or by specifications including any profile or functional standard. Standardization of test methods and criteria for conformance to geographic information standards will allow verification of conformance to those standards. Verifiable conformance is important to geographic information users, in order to achieve data transfer and sharing. This International Standard is applicable to all the phases of conformance and testing. These phases are characterized by the following major activities: a) the definition of ATS for conformance to the ISO geographic information standards; b) the definition of test methods for conformance to the ISO geographic informationstandards; c) the conformance assessment process carried out by a testing laboratory for a client, culminating in the production of a conformance test report.