Knowledge Sharing
Media
For Group Memory
And Collaborative Brainstorming
Outline
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Introduction: Knowledge Sharing Media |
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Plexus: Questions and Answers |
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Navigating the space |
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6.034 as an example |
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Whimsy: Brainstorming |
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Liberating ideas from the whiteboard |
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Five design goals |
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Conclusion: Design rationale capture |
What are knowledge sharing
media?
Digital knowledge sharing
media
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Mutability |
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Searchability |
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Navigability and visualization |
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Intelligent use of contents |
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Two Knowledge Media
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Questions and answers |
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Plexus: Exploring a spatial
metaphor for group memory |
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Questions and Answers
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When a question arises: |
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Has it been asked before? |
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Whom to ask? |
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How to save the answer? |
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How to find it afterwards? |
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Preventing “getting lost” |
Plexus: The Spatial Metaphor
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Provide a shared, visual information
space to structure this dialogue |
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Proximity implies relevance |
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Architect space with relevant
navigation affordances |
Why spatial Q’s and A’s?
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Through proximity, askers know where to
find relevant and related questions |
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Looser notion of relevance than a
hierarchy |
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Experts can find questions they can
answer |
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Overview of what prompts the most
questions |
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Cognitive mapping: Engaging spatial
memory |
6.034: Information Architecture
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Landmarks, paths, regions (Lynch 60,
Neveitt 00) |
6.034: Rules of Discourse
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Students post questions |
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Questions are anonymous to other
students |
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Teaching Assistants post answers |
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Answers may prompt more questions |
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Teaching Assistant may rearrange space |
Plexus Interface
Plexus: Spatial vs.
Hypertext Views
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Asking: Placement in context vs.
appending to a list |
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Answering: “Regions of expertise” |
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Searching: Navigation vs. hierarchical browsing |
Plexus: Evaluation and
Future Work
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Used for two weeks by 6.034 students |
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Limited usage, positive feedback |
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Course-long study |
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Spatially organize existing Web FAQs |
Outline
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Introduction: Knowledge Sharing Media |
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Plexus: Questions and Answers |
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Navigating the space |
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6.034 as an example |
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Whimsy: Brainstorming |
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Liberating ideas from the whiteboard |
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Five design goals |
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Conclusion: Design rationale capture |
Whimsy: Capturing Ideas
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Spontaneous interaction |
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Structured brainstorming meetings |
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Work in progress |
What is Brainstorming?
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Osborne (1957): |
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Withhold criticism |
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Free-wheeling |
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Quantity first |
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Combination & improvement |
Why a digital medium for
brainstorming?
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Pen and paper is convenient, but |
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Napkins are hard to file |
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Napkins are hard to photocopy |
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A digital medium can help |
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Ideas are archivable |
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Ideas are sharable |
Brainstorming: Five design
goals
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Expressibility |
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Focus on the idea, not the medium |
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Accessibility |
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Ideas can occur anywhere |
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Preservation |
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No good idea should be lost |
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Reminding |
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“Where were we?” |
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Individual and Group |
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Personal notebook and shared whiteboard |
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Goal 1: Expressibility
Sketching
and explaining
Goal 2: Accessibility
Pick
up and use
Goal 3:
Preservation
Archiving and
navigating, or
Goal 4: Reminding
Goal 5: Group and Individual
Whimsy: Some Hard Problems
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Context capture and representation |
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Multimodal segmentation and indexing |
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Domain knowledge can help |
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Interfaces for adding and navigating
ideas |
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Tivoli (Moran, Chiu, van Melle 97) |
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Usability and evaluation |
Whimsy: Research Approach
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Understand brainstorming activity |
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Cognitive and social aspects |
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Understand brainstorming facilitation |
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What do experts do? |
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Pick a domain |
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User interface design |
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Intermediate goals |
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User-assisted segmentation first |
Digital knowledge sharing
media
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Mutability |
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Searchability |
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Navigability and visualization |
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Intelligent use of contents |
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Design Rationale Capture
Summary
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Introduction: Knowledge Sharing Media |
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Plexus: Questions and Answers |
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Navigating the space |
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6.034 as an example |
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Whimsy: Brainstorming |
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Liberating ideas from the whiteboard |
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Five design goals |
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Conclusion: Design rationale capture |