W3C home > Mailing lists > Public > public-webpayments-ig@w3.org > March 2015

RE: [use cases] Added Discovery of Offer micro use cases

From: Telford-Reed, Nick <Nick.Telford-Reed@worldpay.com>
Date: Thu, 12 Mar 2015 13:47:48 +0000
To: Manu Sporny <msporny@digitalbazaar.com>, Web Payments IG <public-webpayments-ig@w3.org>
Message-ID: <F83606EEAA40AC4EA2919143B15B74C18902C73E@UKDC2-PC-MBX03.worldpay.local>

I think the structure of this works pretty well now. I'm glad to see Identity making it into the assumptions section - but I still feel that phases of  discovery and authentication of ID should be make more explicit in the doc. It's there implicitly in all sorts of places ("Jill logs into her account on the PayToParty Web site" for example) but as much of the negotiation of offer and payment terms completely depends on the mutual provision of credentials by payee and payer.

Conversely, I'm unsure about the confirmation of funds step which feels very rooted in the traditional cards model. There are plenty of payment instruments which do not have this step, particularly where one or more credentials have been exchanged which stand instead as a guarantee that an exchange of value will occur (for example a cheque guarantee card) or where the request to pay and value transfer are simultaneous (ELV, cash).

I'm struggling to make more than one WPIG meeting a week (and sometimes not even that) - is it ok to contribute by email like this? The asynchronicity makes it easier to squeeze into the week!


Nick Telford-Reed
e: nick.telford-reed@worldpay.com | m: +447799473854 | t: +44 203 664 5069

> -----Original Message-----
> From: Manu Sporny [mailto:msporny@digitalbazaar.com]
> Sent: 12 March 2015 05:49
> To: Web Payments IG
> Subject: [use cases] Added Discovery of Offer micro use cases
> Two sets of updates to the use cases doc tonight:
> 1. The assumptions section from Ian's document has been merged. I
>    added stuff to "identity" and "security" sections and refined the
>    language a bit.
> 2. Eleven "Discovery of Offer" micro use cases have been merged as
>    well.
> Assumptions section:
> https://dvcs.w3.org/hg/webpayments/raw-file/default/latest/use-

> cases/index.html#assumptions
> Discovery of Offer section:
> https://dvcs.w3.org/hg/webpayments/raw-file/default/latest/use-

> cases/index.html#discovery-of-offer
> -- manu
> --
> Manu Sporny (skype: msporny, twitter: manusporny, G+: +Manu Sporny)
> Founder/CEO - Digital Bazaar, Inc.
> blog: The Marathonic Dawn of Web Payments
> http://manu.sporny.org/2014/dawn-of-web-payments/

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Received on Thursday, 12 March 2015 13:48:13 UTC

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