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The Protocol & 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