Collaborative Construction of Artifacts
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Collaborative Construction of Artifacts

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Presentation at the Conference on Professional Knowledge Management in Potsdam, Germany.

Presentation at the Conference on Professional Knowledge Management in Potsdam, Germany.

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  • 1. Collaborative Construction of Artifacts
      • Presenter
      • Hannes Ebner < hebner@csc.kth.se>
      • Co-authors
      • Matthias Palmér <matthias@csc.kth.se>
      • Ambjörn Naeve <amb@csc.kth.se>
  • 2. Motivation
    • Support for collaborative authoring of Context-maps
  • 3. Problems to avoid
    • Collaboration around documents is hard
      • - One editor at a time
      • - Concurrent changes often require user interaction
      • - Access rights to the document have to be defined
      • - Locking might be necessary
    • Information loss during the collaboration phase
      • - Lack of provenance information, e.g. authors, modification dates on various parts
      • - Lack of historical development, e.g. version control
    • “Final version”, no continuous improvement
  • 4. The Solution
    • Artifacts
      • - Represented by an identifier and corresponding metadata with a description, intention, target group, etc.
      • - An open ended set of contributions
      • - Dependency tree
    • Information directory
      • - Manages the metadata
      • - Keeps track of contributions and their metadata
      • - Provides pointers to where to find contributions
  • 5. Perspectives on an Artifact
    • Standard perspective as agreed upon by authors and contributors
    • User perspective: standard perspective plus optional contributions, supports...
      • - Inspection of metadata of available contributions
      • - Selection of a range of contributions
      • - Calculation of a perspective based on the selection
      • - Reevaluation of a selection
      • ...
  • 6. Translated to Context-maps
  • 7. Translated to Context-maps
    • A Context-map is an artifact, a contribution to it may be:
      • - A range of concepts to include
      • - Alternative descriptions of already included concepts
      • - Resources on concepts, such as pictures, documents etc.
    • A concept may be an artifact, a contribution to it may be:
      • - Contributions in the form of metadata
      • - Content
    • In short: Everything that you need to collaborate around may be an artifact if there exists a mechanism to automatically merge the contributions
  • 8. Collaborilla – an Information Directory
    • Information on artifacts
      • - Type: Context-map, Agent, Container, Concept
      • - Metadata (title, description, purpose, author/contributor, ...)
      • - Required and optional contributions
    • Information on contributions
      • - Resolves identifiers of contributions to physical resources
      • - Metadata
    • Wiki-style editing: No authentication required
  • 9. Collaborilla – Used Technologies
    • Current implementation
      • - LDAP as data store
      • - WebDAV on top of Subversion for managing contributions
      • - Clear-text protocol for read and write access, HTTP oriented
    • Future plans
      • - Content repository (JCR/JSR-170)
      • - ReST based Web Services
      • - Authentication
  • 10. Conzilla
    • Concept browser
      • - Basics: contexts, content, and information
      • - Authoring tool
    • Collaborative extension
      • - Inspect and select contributions
      • - Author and publish contributions
      • - Supported by the Collaborilla information directory
  • 11. Future research
    • How to go from individual seeding of artifacts to encouraging others to provide contributions
    • Transparency of ownership
    • Licensing / reusing
  • 12. Further information
    • Knowledge Management Research group, KTH
      • http://kmr.nada.kth.se
    • Project pages
      • http://www.conzilla.org
      • http://collaborilla.conzilla.org
    • Open source, contributions welcome!