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Thursday 20 October 2005     (1A)

(previously scheduled for 2005.10.27, this event has since been rescheduled to 2005.10.20)     (1A1)

Proposed discussion agenda     (1B)

  • Welcome & introduction: different perspectives on WebServices (10 minutes)     (1B1)
    • (1) Modeling web services (tool support for modeling, editing, describing, visualizing)     (1B2A)
    • (2) Doing stuff w/ web services (tool support for composition, coordination, orchestration - ignoring issues of distribution for now)     (1B2B)
    • (3) Web services in the semantic web (tool support for handling distribution issues: coordination/orchestration vs. transaction, service registration/discovery)     (1B2C)
    • (4) Web services as a business infrastructure (tool support for trust, security, authentification, price/resource/service negotiation)     (1B2D)
    • (5) Web services as a formal model of workflow computation (process semantics, AI-style planning, schedulability analysis)     (1B2E)
  • An ontology of Web Services technologies (5 minutes)     (1B3)

A brief overview of languages/tools/techniques in terms of how they relate to the above pespectives/concerns. Details on specifics deferred to short presentations.     (1B4)

TODO: use DavidMartin's slide #4 from SWANS presentation.     (1B5)

TODO: Provide URLs.     (1B6)

  • 4 x Short presentations (10 minutes overview + 10 minutes Q/A)     (1B8)

each approach using a common example w/ optional variation points.     (1B10)

    • Points of variation: # of services/participants, location/distribution transparency     (1B11A)
    • Complex issues: service mismatch (e.g., side effects that may induce coordination/orchestration problems)     (1B11B)

(Ask: David Martin, Grit Denker, Everin Siri, someone at U.Southampton)     (1B13)

Focus on (1), (2), (5)     (1B14)

Focus on (1), (2), (3)     (1B16)

Focus on (1), (2)     (1B18)

Focus on (5), (2), (5)     (1B20)

Legacy,plans,etc... relevant for (1), (3) & (4)     (1B22)

Pertinent Discussions so far     (1C)

From a practical point of view however, there are big differences in the way OWL-S, SWSF and WSMO are described in various documents, presentations, etc... These differences mean that it is difficult for a practioner to understand how these 3 models relate to one another.     (1C7)

In practice, we need to scale back this mapping down to the core concepts that are important across models of web services. So, I propose to focus on 2 groups of concepts:     (1C9)

and as noted in SWSO and WSMO, these two approaches seem to be conflicting views but can be in fact interpreted as complimentary to one another.     (1C11)

a discussion where we use both WSMO and FLOWS/ROWS to emphasize how we could improve that example w.r.t. two criteria:     (1C13)

whereas they are defined in FLOW's process model [8].     (1C15)

& SWSF's approach with FLOWS and ROWS as translated into SWSL-Rules [10]     (1C17)

SWSF's edge over WSMO is in the semantic continuity that FLOWS & ROWS bring across service specifications, descriptions and executions compared to WSMO's multiple languages.     (1C19)

helpful to understand how these two approaches can complement each other.     (1C21)

Outstanding Issues 2005.09.29     (1E)

  • is JohnDomingue arranging for some more participants / panelists from Europe (as previously discussed)? - see above 2005.09.29 discussion     (1E1)
  • EMichaelMaximilien: who are we inviting for the OWL-S side of the world? - see above 2005.09.29 discussion     (1E2)
  • tie down the list of panelists - see above 2005.09.29 discussion     (1E3)
  • what are we expecting from each panelist (5/10 minute openning? ... etc.) - see above "Proposed Discussion Agenda" (by Nicolas/2005.09.28)     (1E4)
  • format/plan for the entire session - see above "Proposed Discussion Agenda" (by Nicolas/2005.09.28)     (1E5)
  • put together an abstract for the wiki session page - Nicolas will handle     (1E6)
  • drawn up a list of questions as "issues to be explored" - Nicolas will handle (use Nicolas' framework as a basis and compile from there.)     (1E7)
  • we need the Bio's from Rama Akkiraju, Amit Sheth, probably also David Martin - EMichaelMaximilien & Nicolas Rouquette, please request from your respective invitee(s)     (1E8)

Key items for transfer to the main session page     (1F)

along with Date, Title, Moderator and List of Panelists     (1F1)

Abstract     (1F2)

(please draft)     (1F2A)

Pertinent Questions for Discussion     (1G)

(please draft and list)     (1G1)

This page has been migrated from the OntologWiki - Click here for original page     (1G2)