The scope of this Recommendation1 is to provide a test suite structure (TSS) and the test purposes (TP) for the Services interface based on the requirements defined in the Continua Design Guidelines (CDG) [ITU-T H.810 (2016)]. The objective of this test specification is to provide a high probability of interoperability at this interface. The TSS and TP for the Services interface have been divided into the parts specified below. This Recommendation covers Part 11. ?C Part 1: Web services interoperability. Health Fitness Service sender ?C Part 2: Web services interoperability. Health Fitness Service receiver ?C Part 3: SOAP/ATNA. Health Fitness Service sender ?C Part 4: SOAP/ATNA. Health Fitness Service receiver ?C Part 5: PCD-01 HL7 messages. Health Fitness Service sender ?C Part 6: PCD-01 HL7 messages. Health Fitness Service receiver ?C Part 7: Consent Management. Health Fitness Service sender ?C Part 8: Consent Management. Health Fitness Service receiver ?C Part 9: hData Observation Upload. Health Fitness Service sender ?C Part 10: hData Observation Upload. Health Fitness Service receiver ?C Part 11: Questionnaires. Health Fitness Service sender ?C Part 12: Questionnaires. Health Fitness Service receiver 1 This Recommendation includes an electronic attachment with the protocol implementation conformance statements (PICS) and the protocol implementation extra information for testing (PIXIT) required for the implementation of Annex A.