How many InCommon sites will my institution show up in?

Tom Scavo trscavo at gmail.com
Tue Jul 2 20:52:25 EDT 2013


On Tue, Jul 2, 2013 at 7:54 PM, Erdos, Marlena
<marlena_erdos at harvard.edu> wrote:
>
> As Harvard moves toward putting up an IdP -- and getting ourselves put
> into the InCommon metadata -- one question that has arisen is "how many
> SPs will list  'Harvard University' as a Discovery/WAYF option
> automatically?"

There are over 1300 SPs in InCommon metadata but, contrary to popular
belief, the vast majority of those are NOT true federated SPs (i.e.,
cross-domain). Sorry, I don't have a number but the extremely small
number of Research and Scholarship SPs
(https://incommon.org/federation/info/all-sp-categories.html) leads me
to believe that.

I'd guess at most half of the small number of federated SPs in higher
ed expose all IdPs. Precious few commercial SPs expose all IdPs.

> We've noticed that some SPs (e.g. HathtiTrust and the DMP Tool) want IdPs
> to go through a distinct on-boarding procedure.

Yeah, that's too bad. I counsel SPs to expose all IdPs and implement
Federated Error Handling (https://spaces.internet2.edu/x/xa6KAQ). In
the end, not many do, though.

> Which is the more general case: automatic-boarding or explicit
> on-boarding?   Or is there no general case? :-)

My best guess is that most SPs do NOT expose all IdPs. I wish that
were different but there you are.

Tom


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