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Overview

Overview. SPIRE project: Looking at the feasibility of P2P in UK higher education Focused on Penn States open source P2P system ‘ LionShare ’ which is a heavily modified version of the ‘ Limewire ’ project (released version 1.0 end of Sept 05)

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Overview

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  1. Overview • SPIRE project: Looking at the feasibility of P2P in UK higher education • Focused on Penn States open source P2P system ‘LionShare’ which is a heavily modified version of the ‘Limewire’ project (released version 1.0 end of Sept 05) • Major difference between normal P2P and LionShare is the inclusion of Authentication and Authorisation • P2P and Authentication +Authorisation is a complex mix

  2. LionShare Features • Authentication and Authorization • Directory Integration • Verification of Sharer’s Identity • Access Control • Network File Storage and Sharing • Automated Metadata • Image Preview • Federated Repository Search • User Profile • Support for Multiple Metadata Schemas • Creative Commons Licensing

  3. Protocols • Uses Gnutella for P2P • Uses HTTP to move files • Can search over repositories using ECL or OKI OSID • Chat via Jabber • Has bespoke protocol with SASL-CA

  4. Main Ingredients for LionShare • The peer on your desktop (client and a server) • SASL-CA server (to provide the peer with network certificates) • Directory service (LDAP or Active Directory (with Eduperson)) • Network Security (Kerberos) • Shibboleth 1.3 (to control access to files)

  5. Three Pronged Approach • Active Directory based install controlled by TALL for early adopter community (broken) • Install linked into Oxford Universities central LDAP (finished) • Install linked to the SDSS text Shibboleth federation (ongoing) Next Step • Build simple version into Reload

  6. LionShare in Reload

  7. Informal to Formal:Tools • Within repositories: P2P, Wikis, Blogs • Description of specific technologies or a mode of use? • Technologies that can be contributed to… Informal: • Wiki • Blogs • P2P • Flickr • My Space • Del.ic.ious Formal: • Dspace • E-prints • VLEs • Institutional Websites

  8. Informal to Formal:Features Informal: • You won’t have to talk to a lawyer • Often ‘on the web’ • Open remit, no heavily prescriptive ideology • Not assessed • Not ‘officially’ published • Casual approach to rights • Collaboration is key (content is written ‘into’ the tool) • Often a social network Formal: • You might have to talk to a lawyer • You may have to be a member of an institution • Maybe assessed • Clear ideology / structure • Collaboration is often indirect (holds objects) • Provided by employer • ‘Secure’ • Could be used for publication

  9. Informal to Formal:LionShare Mapped Informal: • Informal and ‘open’ philosophy • Not used for formal publication • Not assessed Formal: • Institutional sign-in • Can restrict access to selected objects • Not highly collaborative (indirect) • Provided by employer • Conscientious about rights

  10. Informal to Formal:Publication Cycle RepoMMan project Can these ideas be mapped against this principle?

  11. Implications • Institutions should encourage the use of informal repositories • Institutions should suggest a path (workflow) from informal to formal repositories without attempting to own the informal element • Once paths have been established issues of interoperability should be tackled • Institutions should not necessarily attempt to ‘own’ informal repositories • Institutions should find ways of building informal repository use into assessed / reward outcomes? • The data on informal repositories is relatively transient

  12. Project Site http://spire.conted.ox.ac.ukdavid.white@conted.ox.ac.ukhttp://lionshare.its.psu.edu/main/

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