SDL, MSC and UML at ITU

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SDL, MSC and UML at ITU
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Study Group 10 Differentiation

• Distributed communicating systems
• Formal, allowing verification and validation
• Commercial tool support
• User needs catered for Industry and Standards,
  e.g. SG 11

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Key SDL, MSC and UML Priorities

• Maintain and update SDL and MSC
• Joint use of UML with SDL, MSC and other ITU-T
  languages
• Encourage and support take-up of SDL and MSC
  concepts, if not language, at OMG
• Encourage and support take-up of SDL and MSC
  concepts into UML 2.0

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Questions for 2000 - 2004 (Extract)

• Question 2/10 ODL Object Definition Language
• Question 4/10 Unified Modelling Language (UML)
  combined with ITU-T Languages
• Question 6/10 SDL
• Question 9/10 MSC
• Question 11/10 DCL Deployment and
  Configuration Language
• Question 12/10 - URN User Requirements Notation

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Key Challenges Ahead

• Integrating ITU-T and non-ITU languages and
  methods
• Providing various mixes adapted to user needs
• Expanding in the Internet area
• Breaking into new application areas beyond
  telecommunications

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Backup
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Results and achievements

• New Recommendations (Z Series) for
• SDL, MSC, ODL, CHILL
• UML with SDL, SDL with ASN.1
• Acceptance has increased significantly
• Use in ITU-T for protocols, e.g. IN
• Use in the development process, e.g. for mobile
  phones
• Use started for Internet protocols (TIPHON)

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Strategy for the next 4 Years

• Concentration on the core competence of languages
  and description techniques
• Careful diversification into related general
  software and middleware issues
• Further strengthen co-operation with tool vendors
• Maintain and strengthen focus on users within and
  outside ITU-T
• their needs are our guidance