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The social graph: claims and verfication

The latest version of me.edu.au adds support for XFN: The XHTML Friends Network. This makes it possible for tools to automagically link your multiple online identities together.

XFN uses a system of claims and verifications to determine how online identities are linked together. Claims are made using HTML links, using the rel=”me” attribute. If the target site has a link back to the origin also using the rel=”me” attribute that claim is said to be verified.

Why is this important to the education sector? It is a critical building block needed to create distributed ePortfolios.

Tool support for XFN is still in the early stages. Google has provided critical momentum by developing their Social Graph API (note that this relies on updates to Google’s search index, which at the time of writing hasn’t occurred for me.edu.au). Plaxo has an demonstration application; the Online Identity Consolidator. This does work with me.edu.au - the output from processing my profile can be seen here.

The XFN website has a long list of other tools and products using XFN.

4 Comments

  1. Posted February 14, 2008 at 4:43 pm | Permalink

    You absolute legend!
    So, the more RSS feeds I pour into me.edu, the stronger my identity appears?

    Wonder how I can leverage my OpenID (http://mseyfang.wordpress.com) ?
    Can I add that to my current profile of:

    http://me.edu.au/p/fang
    claims: http://del.icio.us/mseyfang/education
    claims: http://pipes.yahoo.com/pipes/pipe.info?_id=IM3vY_cW3BGo95LNl7okhQ

    Why did you have to talk about this on Valentines day??
    I’m torn, start hacking in me.edu or do something more romantic…

    Fang - Mike Seyfang

  2. Posted February 14, 2008 at 8:11 pm | Permalink

    Hi Mike,

    Yes, that’s pretty much right - the more stuff you add the more claims you make.

    This doesn’t really link in with the OpenID stuff at the moment, because it is all about *public* information. DataPortability.org is looking at the issues surrounding portable *private* social data, which ties into OpenID and OAuth.

    But don’t tell anyone I’m to blame for your valentine’s day plans!

  3. Posted February 15, 2008 at 9:31 am | Permalink

    OK, so Ive added a bunch of RSS feeds to my me.edu profile and the sites they come from show up nicely as claims. So, If I add a link back to http://me.edu.au/p/fang (say as a blogroll link in wordpress) will that serve to verify the claim? (and if so how do I show this).

    http://me.edu.au/p/fang
    claims: http://del.icio.us/mseyfang/education
    claims: http://learndog.typepad.com/learndogpup
    claims: http://mseyfang.edublogs.org
    claims: http://mseyfang.wordpress.com
    claims: http://pipes.yahoo.com/pipes/pipe.info?_id=IM3vY_cW3BGo95LNl7okhQ
    claims: http://spaces.msn.com/members/mikese
    claims: http://www.flickr.com/people/mikeblogs
    claims: http://www.flickr.com/people/mikeblogs/contacts
    claims: http://www.flickr.com/photos/mikeblogs

    Fang - Mike Seyfang

  4. Posted February 15, 2008 at 10:26 am | Permalink

    Yes. In wordpress, add a link back to your profile and use the “Link Relationship (XFN)” section to set the relationship to “me”.

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