hierarchy at oxford adam marshall and matthew buckett university of oxford
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Hierarchy at Oxford
Adam Marshall and Matthew Buckett
University of Oxford
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Overview
• The problem• The current solution• Solving in Sakai• Demo • What’s next?• Technical guff
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Sakai at Oxford
• Current VLE/LMS is Bodington• Moving to Sakai
– Pilot 08/09– Production 09/10– Bodington decommissioned 11/12
• Must offer equivalent functionality• Big problem: lack of Hierarchy
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Hierarchy?
• Reflect University structure• Provides context to material• Reuse of sites• Meaningful URLs• Anonymous access
– Search engine indexing
• Devolved administration
Bodington supports above.
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Hierarchy in Sakai
• Resources tool– File hierarchy– Can collapse some
• Chuck’s subsite work• Ian Boston’s work• Internal tool hierarchies (Evaluations)
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Chucks’ Subsite
• Lots of small hierarchies• Useful for tying courses together• Not very invasive
But• Only presents sites you’re a member of• Not browseable from Gateway site• No tool support• No nice URLs• No site reuse
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Chucks Subsites
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Oxford Hierarchy
• Initial development from Ian Boston• One overarching arrangement of sites• Sites exist in multiple places in hierarchy• Meaningful URLs
– Site URLs– Page Aliases
• Tool Support
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Hierarchy diagram
GatewayGateway
CollegesColleges
ExeterExeter
HelpHelp
ASUCASUC
MyWorkspaceMyWorkspace
Sites
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Oxford Hierarchy Demo
• Movie for backup
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Devolved Admin
• Why? Small central team• Encourage first level of support to local IT• Increase self reliance
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Devolved Admins
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English Admin SiteEnglish Admin Site
Sue(Admin)
Joe(Member)
Early Medieval English SiteEarly Medieval English Site
Joe(Manage)
Rita(Access)
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Devolved Admin Demo
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Technical Implementation
• Skin Changes• Portal changes• Hierarchy API• Site Manage changes• Sites tool (search)• Helpers hurt (brittle).
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Hierarchy Enhancements
• Hierarchy navigation as a tool in site.• Drag and drop interface for management.• Other related sites.• JCR for storage of tree.• Tabs aren’t right for parent nodes, anything
better?
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What else is possible?
• Search downwards from here• Different toolset based on position• Site template based on position• Inheriting permissions (parent realm)?
But:• Tools should not be hierarchy aware
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Further Details
• http://beta.weblearn.ox.ac.uk/ - Pilot Instance• https://source.sakaiproject.org/contrib/tetraelf/
hierarchy/ - Hierarchy code.• https://svn.oucs.ox.ac.uk/projects/vle/sakai/build/
- Our build including WL-7 patches and skin changes.
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