Time/Place

This meeting is a hybrid teleconference and IRC chat. Anyone is welcome to join...here's the info:

• Time: 11:00am Eastern Daylight Time US (UTC-4)
• U.S.A/Canada toll free: 866-740-1260, participant code: 2257295
• International toll free:  http://www.readytalk.com/intl 
  
  • Use the above link and input 2257295 and the country you are calling from to get your country's toll-free dial-in number
  • Once on the call, enter participant code 2257295
• IRC:
  
  • Join the #duraspace-ff chat room via Freenode Web IRC (enter a unique nick)
  • Or point your IRC client to #duraspace-ff on irc.freenode.net

Attendees 

• Andrew Woods
• David Wilcox 
• Unknown User (escowles@ucsd.edu)
• Greg Jansen
• Jon Roby
• Yinlin Chen
• Don Moses
• Stefano Cossu
• (others who plan to attend, feel free to add your names in advance)

Agenda

1. Ongoing Hydra access control metadata discussions, focusing on WebAccessControl proposal from W3C.

Minutes

Hydra Access Controls

• Justin Coyne mostly done implementing WAC proposal
  • Should be working in Hydra
• Resources reference access control nodes
• Should we enforce in Fedora?
  • Role-based access control?
  • New module?
  • Might solve problem of not being able to use fine-grained access control in file system federation
• Most people in Hydra community are interested in this standard
• Modes as predicates
  • Limited set of HTTP modes
  • Use cases for other modes?
• Hydra devs getting together in first week of November to implement
  • Working on Hydra modelling more broadly
• How to control who can set ACLs?
  • Some questions about implementations
  • Broad ability to create ACLs is powerful, needs to be constrained
  • Could be done at the application layer, or maybe with XACML
• Does Fedora need an API for this?
  • Maybe no - just use SPARQL-update
• Need an index/cross-reference between ACLs and objects to enforce in Fedora
  • Resources would have reciprocal properties linking to ACLs
    • Could enforce in this way
    • Could maybe work for filesystem federation as well
      • Would be more complicated - might need an index
• Greg: replace basic roles with WAC roles
  • Enforce in XACML or Java code as they are now
  • Can extend roles with XACML
  • New roles unsupported by WAC could still be created and enforced at the XACML level
• Great opportunity for interoperability (WAC/LDP)
  • Hydra over Marmotta is much easier now that Fedora implements LDP (as does Marmotta)
• Can enforce in Hydra or Fedora or both
• Need to post page on Fedora 4 wiki for broad comments

List ordering (Stefano)
 

• Tested blank nodes and they work now
• An ordering ontology supported in the repo would be preferred
• Need to establish a community quorum for proceeding
  • Schedule special topic call