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ETSI PTCC: Protocols & Testing Competence Centre

ETSI PTCC supports ETSI Technical Bodies in the development of protocol and service standards, as well as test specifications. They assist with specification, validation, and testing using state-of-the-art techniques and provide pragmatic and flexible approaches based on experience. The PTCC expertise includes protocol specification and validation, production of test specifications, and design for interoperability.

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ETSI PTCC: Protocols & Testing Competence Centre

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  1. The Protocol & TestingCompetence Centre

  2. Test Specs Specification Testing Development In Pursuit of Interoperability • Ultimate aim of ICT standardisation is interoperability • Likelihood of interoperability is increased with • Well-defined, accurate and unambiguous standards • Systematic testing of products based on those standards • ETSI produces Base Standards and Test Specifications

  3. Unique Resources Available to ETSI Technical Bodies • TC MTS (Methods for Testing and Specification) • Develops specification methodologies and techniques • E.g., this is where TTCN-3 was defined and is further evolving with significant contribution of PTCC • testing methodology (e.g., IPv6 Testing Framework) • http://portal.etsi.org • http://portal.etsi.org/mbs/ • ETSI PTCC (Protocol and Testing Competence Centre) • Supports ETSI Technical Bodies with the development of: • Protocol and service standards (StandardsEngineering) • Test specifications • http://www.etsi.org/ptcc • ETSI Plugtests Service • Organises interoperability events • http://www.etsi.plugtests

  4. How Does the PTCC Help? • Assist ETSI Technical Bodies on the use of state of the art techniques for • Specification, validation and testing • Good working practices (Standards Engineering) • Pragmatic and flexible approach • Based on experience • Help to develop usable methodologies • For ETSI’s current and emerging needs • Knowledge transfer • Quality through Continuity

  5. Who PTCC Supports • Technical Bodies (TB) • Technical Committees • ETSI Projects • Partnership Projects etc. • Chairmen, Rapporteurs, Individuals • Working Groups (WG) • STFs (Specialist Task Forces) • PTCC budget for test specifications (15-20 STFs per yr) • ETSI Secretariat

  6. Typical PTCC Areas of Activity • GSM and 3G (UMTS) terminals • Wireless: HiperACCESS, HiperMAN/WiMAX (802.16) • Cordless phones: DECT • Access terminals: FSK, SMS • ISDN, Broadband ISDN • OSA (API, IDL) – web services • NGN • VoIP: H.225, H.248, H.245 (ITU), SIP (IETF) • SIGTRAN • Smartcards • DECT • IPv6: Core, IPSEC, Mobility, v4 -> v6 • DSRC (ITS) • DMR • ... future: More telematics/ITS, more security?

  7. PTCC Expertise • Technical competence • GSM/3G UMTS, OSA, VoIP, WirelessLan, IPv6, DECT, INAP, B-ISDN etc. • Protocol Specification and Validation • UML (Universal Modelling Language), • MSC (Message Sequence Charts), • SDL (Specification and Description Language), • ASN.1 (Abstract Syntax Notation One), • Production of Test Specifications • world recognised testing expertise • TTCN (Tree and Tabular Combined Notation) • Modern tool support

  8. Design for Interoperability • Interoperability takes place on external interfaces • Normative (mandatory) features • Options • Consequences must be clear • Abnormal behaviour should be well-defined • Robustness • Never specify how product is to be implemented internally • Different levels of abstraction e.g., 3-stage approach • Methods like SDL, ASN.1, XML, MSC and UML used to specify these interfaces • Data transferred on protocol interfaces • syntax and encodings (ASN.1, XML) • Behaviour of modules as seen from these interfaces • TTCN and test methods used for black box testing • No need to know how product is implemented • External interface is tested according to specification

  9. Profiling and Interworking • Many standards are ‘open’ • Include many options • Interoperability requires profiling • e.g. ETSI TISPAN NGN • Options are screwed down (dropped) • Works with ‘similar’ technologies • Implement and test the profile • Significantly different technologies • Interworking functions • e.g., SIP – H.323 • General reluctance to specify ‘profiles’ • Indications that situation is changing

  10. Conformance Network Integration Robustness Performance Interoperability RF/EMC Different Kinds of ETSI Test Specifications

  11. The PTCC Testing STFs Write Test Specifications • PTCC • 4 full-time experts + 1 assistant (employed by the ETSI Secretariat) • 60% test specification, 40% protocol specification • We use Specialist Task Forces (STFs) • Experts are seconded from the ETSI membership • PTCC STF Budget • Assignment of this budget is done by ETSI members (ETSI Board) • Produce test specifications • Short projects • e.g., 2 man-months maintenance of VoIP tests • Long projects • e.g., UMTS testing 58 man-months per year over 3-4 years • 15 – 20 PTCC STFs per year • Typical total yearly resource = 10-15 man-years (with UMTS)

  12. What is an STF ? • An STF is a group of experts working together as a team, to produce one or more ETSI standards • STFs give ETSI a competitive advantage by accelerating the development of urgently needed standards • Funded by a dedicated budget line (FWP and PTCC) • STFs are proposed by the ETSI Technical Bodies • Experts are seconded from ETSI Members • Experts normally work at ETSI premises

  13. Normal work Urgent work Committee voluntary work STF ToR Board approval DraftETSIstandard Draft standard ETSI Funding TB approval EC/EFTA Members PublishedETSIstandard STF (contracted experts) The STF role in the standards production Technical Body

  14. Jan 1st allocat. Jun 2nd allocat. STF funding ETSI Members EC/EFTA ETSI budget Voluntary funding Direct contracts eEurope OCG / Board Contract Contract Contract Contract … … STF 1, STF 2, ..... STF n

  15. Information on STF process • General information http://portal.etsi.org/Portal_Common/home.asp • List of STFs • Open Call for experts • etc. • STF Management principles and practice http://portal.etsi.org/stfs/process/home.asp A guide through the STF process: • How to create an STF • How to join an STF • ETSI contractual conditions • etc …

  16. Summary • Standards can be designed for interoperability • Standards should be engineered • Plan for testing (early) • Do the right kind of testing and test in parallel • We can help you achieve the above

  17. PEX Help! • Open-door electronic access • phone: +33 4 92 94 43 26 • fax: +33 4 93 95 84 51 • e-mail: ptcchelp@etsi.org • Web pages: http://www.etsi.org/ptcc

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