SMS Breakout Nov 2004

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Topics for SMS Breakout at SEEK AHM

Wednesday, November 3, 1:30 -- 5:00 (Walnut, 6th)

Moderator: Bertram Ludaescher

Agenda

• Updates: Overview and Progress
• Semantic Typing
• General Discussion
• Current issues
• New ideas
• Priorities
• Goals (Short-term, 6-month, 1 year)

Notes

• Bertram high-level
• requirements:
• semantic (in addition to structural) annotation of:
• services (actor) and
• datasets
• for ... discovery, WF design, ...
• prerequisites: what does this annotation langauge have?
• structural types
• array of float; list of record of (int, float, string); etc.
• e.g., relational schema type, ptolemy type
• applies both to data and "functions" (actors)
• essentially, useful for plumbing -- the level of the programmer, or data provider
• semantic type
• formal expression referencing concepts in an ontology
• to provide a high-level, conceptual of data and services
• data(set)
• informal descriptions: eml style metadata, keywords, controlled vocabularly
• formal description
• dataset ~ concept
• attribute (column) ~ concept
• fine-grained:
• query(X1, X2, ..., Xn) ~ concept expression(X1, ..., Xn)
• Xi are "tags" or variables point to substructure
• actors (services)
• overall function
• input/output signature (-> reuse framework from dataset annotation)
• Questions