ITU-T Workshop 23 November 2002 on Use of Description Techniques By Arve Meisingset Study Group 17 Vice chairman

Purpose The objective of the workshop is to determine needs for improvements to the description techniques for various application domains. The presentations of experiences from use of individual ITU description techniques and of combined use of description techniques are the basis for determining needs. The presentations also provide an opportunity to compare and contrast different approaches.

Contributions The workshop is seeking contributions from the following domains: * Usage experiences on the applicability of individual description techniques * Usage experiences on the combined use of description techniques * Experiences from learning and introductory use of description techniques * Different needs for informal and formal use of the description techniques * Needs for extending or focusing the scope of ITU description techniques * Experiences from tool support and identification of needs for improvements (?) * Experiences from and needs for support, such as consultancy, teaching, and marketing (?) * Needs for co-ordination with non-ITU description techniques

Context May contribute to project on co-ordination of use of the description techniques Key results may be labelled - Unified Language Family (ulf) - Telecommunication Interoperation Language Environment (tile)

Dynamics

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Agenda morning 09:30–09:45 Opening. Arve Meisinget 09:45–10:15 Use of object-oriented modeling (OOM) principles and UML notation to define Signalling requirements. Raphael Schumacher 10:15–10:45 Syntax language for the support of PSTN/ISDN services within IP session control protocols. Keith Mainwaring 10:45–11:00 Coffee break 11:00–11:30 SG 16 activities and the need for formal description techniques. Simao Ferraz de Campos Neto 11:30–12:00 Use and needs of Decription Techniques in Study Group 4. Knut Johannessen 12:00–12:30 Summary of needs for description techniques within ITU. Amardeo Sarma

Agenda afternoon 14:00–14:30 SDL & Requirements of Signalling Systems. William H. Skelton 14:30–15:00 The use of TTCN-3 for Software Testing. Ina Schieferdecker 15:00–15:30 Experiences from teaching, learning and introductory use of description techniques. Richard Sanders 15:30–16:00 Coffee break 16:00–16:30 Using the User Requirements Notation. Daniel Amyot 16:30–17:00 Back to Basic SDL. Rick Reed 17:00–17:30 Summary of workshop and action items. Thomas Weigert

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