W3C home > Mailing lists > Public > public-credentials@w3.org > June 2017

Re: Terminology poll (updated)

From: Dave Longley <dlongley@digitalbazaar.com>
Date: Mon, 26 Jun 2017 15:47:33 -0400
To: Steven Rowat <steven_rowat@sunshine.net>, public-credentials@w3.org
Message-ID: <f8336df4-e66b-12ea-3eba-bc1ee1fcfba6@digitalbazaar.com>
On 06/26/2017 03:27 PM, Steven Rowat wrote:
> On 2017-06-26 10:52 AM, Dave Longley wrote:
>> On 06/26/2017 01:34 PM, Steven Rowat wrote:
>>> On 2017-06-26 9:27 AM, Manu Sporny wrote:
>>>> * The number of options for ROLE_C has become so large that it
>>>> will most likely lead to bad polling results. I suggest that we
>>>> start aggressively culling the ROLE_C list before the vote
>>>> starts tomorrow. We should get some strong arguments against
>>>> roles that you feel should not be in the running.
>>> 
>>> Here's my attempt to cull new Role C (the Holder/Presenter/...
>>> list) :
>>> 
>>> ...
>>> 
>>> -1 SHARER IMO it seems to imply a specific role of
>>> 'distributing' the claim. Maybe this is just baggage from other
>>> OS uses in my case, but I wouldn't mind if it was removed from
>>> the list.
>> 
>> I think that may actually be the only common purpose for this
>> particular role given the various use cases where it appears in
>> different forms.
>> 
>> The most fundamental reason we have that role, IMO, is to
>> demonstrate that the entity that made the claim (Issuer) does not
>> have to be the one sharing the claim with the relying party
>> (Inspector). That's the whole point:
>> 
>> Party A can make a claim that party B can share with party C such 
>> that party C trusts it came from A -- without trust in party B.
>> 
>> That's the strength of verifiable claims; you don't need party A to
>> be the one who hands the claim over to party C.
> 
> That's a strong argument, but after trying various combinations on
> the poll page, I still think Sharer lacks something, which is the 
> self-sovereign aspect.
> 
> The way the poll page is set up, the word we choose has to do for
> both cases where the role is split and where it's not. I think Sharer
> is especially not ideal when the Subject and the
> Holder/Presenter/...Sharer are the same person.

Interesting -- I tend to think it fits that case better, especially
thinking of it in terms of how other types of information are shared on
the Web. People typically "share" their own data on the Web.

> 
> Example, plugging in 'Sharer', 'Presenter', and 'Holder' to compare
> them:
> 
> "A(n) Sharer may present Claims directly to a Verifier. For example,
>  providing a digital driver’s license directly to a Verifier."
> 
> "A(n) Presenter may present Claims directly to a Verifier. For
> example, providing a digital driver’s license directly to a Verifier.
> "
> 
> "A(n) Holder may present Claims directly to a Verifier. For example,
>  providing a digital driver’s license directly to a Verifier. "
> 
> To rephrase these, if I have my own driver's license, then I am
> either: The Presenter of it The Holder of it The Sharer of it
> 
> I feel that Sharer falls down in this example; the other two seem 
> better, especially Holder.

Why? Because of the surrounding word choice and grammar? With tweaks for
Sharer, you get:

A Sharer may share Claims with a Verifier. For example, sharing your
digital driver's license with a police officer.

That sounds perfectly reasonable to me.

> 
> The other main side of the split is if I'm authorized to be my
> niece's legal guardian. The certificate that allows me that, the
> claim, I can then be:
> 
> The Presenter of it The Holder of it The Sharer of it
> 
> Here they're closer, but again I'd prefer Holder.
> 
> To me Sharer doesn't convey the idea that there's authorization in
> the Role to care for the Subject's data. I believe Holder does, and 
> Presenter does but less so. Not so Sharer.

The term "information sharing" is quite commonly used in relation to
rights and regulations. I don't think saying that someone is the sharer
of information fails to convey that there may potentially be some
authorization requirements involved in the act of sharing.


-- 
Dave Longley
CTO
Digital Bazaar, Inc.
http://digitalbazaar.com
Received on Monday, 26 June 2017 19:48:01 UTC

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