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http://http://copeit.cti.gr/copeit.cti.gr/
Nikos KaracapilidisNikos Karacapilidis
Research Academic Computer Technology Research Academic Computer Technology Institute Institute &&University of Patras, GreeceUniversity of Patras, Greece
Requirements and Requirements and challengeschallenges The The Palette projectPalette project (FP6) – 12 CoPs (FP6) – 12 CoPs Major issuesMajor issues
Cognitive overhead and management of information overload
Different collaboration modes Expression of tacit knowledge Integration of legacy resources Data processing and decision making
support
Our approach (i)Our approach (i) Web based Web based Argumentative CollaborationArgumentative Collaboration
environment to support collective environment to support collective knowledge buildingknowledge building Semi-synchronous collaborationSemi-synchronous collaboration
Basic goalsBasic goals An An integrated considerationintegrated consideration of formalization, of formalization,
visualization and reasoning issuesvisualization and reasoning issues Allow formality to varyAllow formality to vary during the collaboration during the collaboration
session (addressing different collaboration stages) session (addressing different collaboration stages) Incremental formalization of collaborationIncremental formalization of collaboration
Permitting a Permitting a stepwise and controlled evolutionstepwise and controlled evolution of of the collaboration spacethe collaboration space
Our approach (ii)Our approach (ii)
Conceptual architectureConceptual architecture Based on Based on projectionsprojections
A representation of the argumentative A representation of the argumentative collaboration in some evolution stage.collaboration in some evolution stage.
The same collaboration can have different The same collaboration can have different representationsrepresentations
Each projection provides Each projection provides different different abstractionsabstractions and allows different operations and allows different operations
Supports a level of formality (solves the problems of a Supports a level of formality (solves the problems of a particular collaboration stage)particular collaboration stage)
Ability to Ability to switchswitch between projections between projections change change level of formalitylevel of formality
collection &sharing of collaboration items
interrelation & evolution of collaboration items
informal / semiformal argumentation
exploitation of legacy resources
semantic annotation of collaboration items
informal / semiformal aggregation of collaboration items
formal exploitation of collaboration items patterns
formal argumentation and reasoning mechanisms
Informal Formal
collaboration space
projection 2
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2
projection n
too
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…projection 1
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1
Formality
Our approach (iii)Our approach (iii)
Early instance of the collaboration
- desktop metaphor- visual cues- exploitation of legacy resources- user & role modeling- human interpretable
informal projection
Another instance of the collaboration
Filtered view: automatically arranging items
formal projection
- decision making support- reasoning & scoring mechanisms- switching between projections