[Cloud] new use case for cloud printing

[Cloud] new use case for cloud printing

[Cloud] new use case for cloud printing

Zehler, Peter Peter.Zehler at xerox.com
Fri Aug 17 12:30:05 UTC 2012


There already is an straw man schema/WSDL for Cloud Printing.  I started
with the definitions I had from one of my old prototypes and modified
them based on early discussions in the group.  Note that the WSDL is
invalid because it is still based on my prototype.  The WSDL will be
dropped on the next update.  The message schema was updated back in
February based on PWG discussions.  The current definitions are way out
of date and there are as some operations added that I don't even
remember what their purpose is anymore.  My intention is that once we
get around to another discussion on the Cloud Print Manager to Cloud
Print Service interactions I'll update the operations.  I will also
incorporate them as another PortType in the PrintService WSDL once we
get closer to a common understanding of what will be needed.  

The current out of date operations and parameters can be viewed at the
URL below.  The Cloud Print Manager/Cloud Print Service operations are
segregated in their own sequence at the bottom of the figure.
<http://www.pwg.org/mfd/navigate/PwgSmRev1-181_ServiceOperations.html#Li
nkFF9> 




Peter Zehler

Xerox Research Center Webster
Email: Peter.Zehler at Xerox.com
Voice: (585) 265-8755
FAX: (585) 265-7441
US Mail: Peter Zehler
Xerox Corp.
800 Phillips Rd.
M/S 128-25E
Webster NY, 14580-9701 

-----Original Message-----
From: cloud-bounces at pwg.org [mailto:cloud-bounces at pwg.org] On Behalf Of
William A Wagner
Sent: Friday, August 17, 2012 12:12 AM
To: 'Randy Turner'; cloud at pwg.org
Subject: RE: [Cloud] new use case for cloud printing

By the  latest (but yet to be approved by the SC) Charter
(ftp://ftp.pwg.org/pub/pwg/cloud/wd/wd-cloud-charter-20120428.pdf) the
Cloud WG is to specify the Model, first of Cloud Printing and then of
Cloud Imaging. The IPP  group is to generate an IPP Binding to the Model
specification. In theory, the Semantic Model group was to generate "SOAP
binding documents for Cloud Print and Cloud Multifunction services with
associated XML schemas/WSDL definitions and equivalent informative REST
bindings". Practically, with Mike and Ira distracted, the IPP WG may be
running out of steam. With Pete leaving the Semantic Model WG, it seems
unlikely that a Cloud Imaging binding is on the to-do list. So we may
want to consider alternatives. 

Bill W.

-----Original Message-----
From: cloud-bounces at pwg.org [mailto:cloud-bounces at pwg.org] On Behalf Of
Randy Turner
Sent: Thursday, August 16, 2012 10:55 PM
To: cloud at pwg.org
Subject: Re: [Cloud] new use case for cloud printing



Is the output of the cloud WG going to be implementable, or are we
keeping things abstract, wherein some actual cloud print provider will
essentially "instance" our model and do a concrete implementation ?

R.

On Aug 16, 2012, at 3:05 PM, "larryupthegrove"
<larryupthegrove at comcast.net>
wrote:

> I think this is a design decision based use case - that the cloud 
> service would attempt to retrieve the files by a specific method.  The

> use case of the user wanting to print a file from a service or 
> location could also be met by requiring the user to upload the file, 
> or click print on the file in Flickr (or other application) and select

> the cloud provider from the list of printers, or add the cloud print 
> provider as a "trusted friend" in Flickr, or  .....
> 
> Larry
> 
> -----Original Message-----
> From: cloud-bounces at pwg.org [mailto:cloud-bounces at pwg.org] On Behalf 
> Of William A Wagner
> Sent: Thursday, August 16, 2012 1:55 PM
> To: 'Randy Turner'; cloud at pwg.org
> Subject: RE: [Cloud] new use case for cloud printing
> 
> The scenario is interesting, but I think the conditions you suggest 
> (Cloud or printer needs to authenticate on behalf of Alice to get 
> access to the photos, but cannot use Alice's credentials) make this a 
> problem in authentication/authorization akin to other cloud service 
> issues rather than represent a printing specific issue. I think we 
> discussed a similar case at the meeting and decided we would defer to 
> cloud service provider solutions such as used in allowing friends to 
> view cloud based photo albums or have files shared via Dropbox (send 
> the link/password encrypted??); or revert to having Alice pull the 
> photos
though her device.
> 
> But even if we do not attempt to define a solution, I agree that this 
> is a potentially valid use case that we might list but decline to
address.
> 
> Opinions from others in the working group??
> 
> Bill Wagner
> 
> -----Original Message-----
> From: cloud-bounces at pwg.org [mailto:cloud-bounces at pwg.org] On Behalf 
> Of Randy Turner
> Sent: Thursday, August 16, 2012 4:01 PM
> To: cloud at pwg.org
> Subject: [Cloud] new use case for cloud printing
> 
> 
> During the recent F-to-F meeting and re-reading the current cloud 
> use-cases, I didn't see a use-case for accessing 3rd-party web site 
> content to print "from" - an example being.
> 
> Alice has a photo album stored on Flickr.com.  She wants to print one 
> or more of her pictures from her Flickr album on a particular cloud
printer.
> This is similar to the print-by-reference case, in that Alice will 
> probably specify a URL (URI) to print "from".  However, the cloud 
> service will have to authenticate on behalf of Alice to access her 
> photo album (by reference), and Alice must not reveal her Flickr 
> authentication credentials to the cloud service.
> 
> R.
> 
> 
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