MP last call comments

Here are some comments on 
  http://www.w3.org/TR/1999/WD-Micropayment-Markup-19990825/

steaming from personal review and also discussion on the WAI PF list.


* 4.1 Field description

  Please separate the price field in price (amount) and currency (iso
  code). It's much more easy to parse that way.

* Appendix 6: List of payment systems. 
 
  I want to understand why there is a need for a central registry
  (e.g. W3C) of payment system name. A central registry
  is a lot of work and can be a lot of trouble. There's already one:
  DNS, and we should use it (i.e. use URI) as much as we can.
  
  If it's not necessary (e.g. for convenience) then it should be
  avoided.

  Isnt' there a way to still use short name ($MP$) without registry,
  just like namespace do ? (i.e. bind the URI of the payment system to 

  the short name dynamically - in the payment info coming from the
  server) 

* Reword section 4.1.5 on payment specific to make clear what, among
  1.mpname , 1.mpparamname, 1.mpurl is part of the syntax and what can 

  vary

* Appendix 7: Put currently extension in payment specific field

  Extension Currency naming is really confusing, particularly the
  z-x mechanism. Can't the currency extension info be put in a payment 

  specific field and keep the currency just to ISO codes ?

* The examples using Javascript to produce the link are nice, but
  there needs to be a noscript option for getting at the object. Maybe
  that is the place for a straight-out link that is handled by a
  helper app.

Received on Thursday, 30 September 1999 15:40:24 UTC