[Cloud] Updated Mapping and Model Drafts

[Cloud] Updated Mapping and Model Drafts

[Cloud] Updated Mapping and Model Drafts

Murdock, Joe jmurdock at sharplabs.com
Fri Jun 8 21:08:54 UTC 2012


I agree.  However, the PWG does need to provide more than just a model.  We do need to provide a well-defined standard interface for the CPS, CPSS and CPM to provide interoperability between vendors, otherwise why are we bothering?  I agree that that interface does not need to be IPP (I'd argue for a SOAP based model, but that's just me), but since we do have a Semantic Model that provide all of the pieces we need, we should use what we can of that.
So,

1)      I agree on your example 1, but we do need to define a set of standard binding.  I thing we ultimately need to provide an environment where each vendor could provide printer and a compatible Cloud Print Manager (and yes it should be a Cloud Print Manage, not because it necessarily in the Cloud, but because it's providing Cloud Printing functionality)

2)      Example 2 should be perfectly feasible with our model.  Nothing we're proposing prevents that.  And if a particular CPS/CPSS/CPP vendor wants to use proprietary interface between their internal processing services, fine.  But they should still provide a PWG-compatible binding to either IPP or SOAP/SM and REST/SM

From: Petrie, Glen [mailto:glen.petrie at eitc.epson.com]
Sent: Friday, June 08, 2012 1:34 PM
To: Petrie, Glen; Murdock, Joe; larryupthegrove; ptykodi at tykodi.com
Cc: cloud at pwg.org
Subject: RE: [Cloud] Updated Mapping and Model Drafts

Joe,

As far as the overall generic model is concerned; my hope is that the PWG can create a very generic model (that is not constrained by any existing PWG Candidate Standards) and, then, show where and how the PWG Candidate Standards fulfill (or maybe don't fulfill) each major components and/or protocol of the solution.   Example, the communication between a CPS and the Print Cloud Manager (really should be called a Printer Manager since it is not in the Cloud) does not have to IPP !  But, IPP, fulfill the need and it is easy to show how.  Example 2; what if a CPS want all print job processing to be done in the cloud (SAAS) versus in the at or beyond the Printer Manager; that should be a possible solution also of the generic PWG Cloud model.  PWG would note that the CPS can be implemented as an IPP print queue and, again, easy to show how.

Glen


________________________________
From: cloud-bounces at pwg.org<mailto:cloud-bounces at pwg.org> [mailto:cloud-bounces at pwg.org]<mailto:[mailto:cloud-bounces at pwg.org]> On Behalf Of Petrie, Glen
Sent: Friday, June 08, 2012 1:15 PM
To: Murdock, Joe; larryupthegrove; ptykodi at tykodi.com<mailto:ptykodi at tykodi.com>
Cc: cloud at pwg.org<mailto:cloud at pwg.org>
Subject: RE: [Cloud] Updated Mapping and Model Drafts

Joe,

</
There is nothing to prevent, and actually a lot to recommend/require, a Cloud Print Provider from supporting multiple Cloud Print System Services, based on a variety of performance, contractual and legal agreements/reasons.  It is not unusual that a customer's requirement for a cloud service be that the customer's data never reside on or be processed on a service that does not reside in a specified country.  With a multinational Cloud Print Provider, this would necessitate they provide multiple Cloud Print System Services on multiple pieces of physical hardware that resides in multiple countries).
/>
According to the definition in the model the Cloud Print System Service (CPSS) "creates Cloud Print Services (CPS) and enumerates CPS available to authenticated Cloud Print Users".

Thus, you want the Cloud Print Provider (CPP) (the environment) to have multiple services that create CPS's and can enumerate CPS's; which, if I follow your use-case, span multiples countries.   I don't really understand.  A single CPSS could create the CPS in any country.  Your statements states that the customer's data must be in a specific country; ok!  The CPSS does not possess customer's data, a CPS does (may); where the CPS resides in the country of interest.

</
In this scenario, a user/company/printer/other service needs to have a well know endpoint to start with (the Cloud Print Provider), from which it can be redirect as necessary to the appropriate system service, and ultimately the proper print service, based on information associated with a user's account.  If we combine the Cloud Print Provider and the Cloud Print System Service this account-base separation and redirection is no longer possible.
/>
According to the definition in the model the Cloud Print Provider "is the environment in which the CPSS and CPS's reside. "   So from this definition, there would have to be multiple CPPs; one for each constrained environment.

I actually don't understand your use-case.   Any CPP (Epson's, HP's, Google's, Ford's, etc.) is just the environment (the collection of cloud print software entities).   Assuming it is public in a world wide sense (and not private where everything is "contained"); then there will always be single specific world wide entry points for registration, user accounts, and so forth.   It is fairly likely that the entry points processing software does nothing more than redirect to one of many, many, many Cloud Print Registry (CPR) that can communicate with each other and share information (i.e. a user and printer registration data base). (Either for load balancing or in your case for domain constraint.)  Any one of the CPR can instantiate a CPS and, if necessary, on a specific domain server or in a specific country.

I believe you are really discussing implementation and deployment details versus a model.

</
I also don't like the idea of renaming the Cloud Print Provided as the Cloud Print Registry, as registering a printer is only a small portion of it job.  It does not register a user, rather it authenticates a user account that was previously setup via a marketing/sale organization.
/>

What does marketing/sales organization have to do with User registration?  I did not go to my or Google's sales or marketing group to register in the Google Cloud Print (Provider).   Or do you associate a User with company.  Example, Ford Motor Company wants an HP Cloud Print; so that sales and marketing provide the "User" (Ford) with an account (actually, a complete Cloud Print Solution).   I believe the term User means an individual but could be a group.   An indeed a CPR could register Users; that is an implementation of the Cloud Print Solution.

</
It does not register a Cloud Print System Service, rather it creates one or more Cloud Print Systems as dictated by the same marketing/sales organizations (based on customer requirements), with additional input from an IT organization.  It does not even really register a printer, rather it creates a Cloud-based Printer Service to receive and handle jobs for that printer
/>

Again, I believe your model is that a Cloud Print System Service is Cloud Print Bundle that is sold to companies.   While, I believe the model, generically, describes any Cloud Print Solution.

We all understand (at least I hope so) that "Printer registration" implies creation of a CPS representing the physical (maybe not even a physical) printer.   If the CPSS creates CPS and it does not register the CPS; then who does.  It makes perfect sense that if the CPSS instantiates a CPS it should register is some data base.   And, since, the CPSS (by definition) is supposed to enumerate CPS for a User; it does have to have access to both a User data base and CPS data base and association data for both the User and the collection of CPS's.

glen
________________________________
From: Murdock, Joe [mailto:jmurdock at sharplabs.com]<mailto:[mailto:jmurdock at sharplabs.com]>
Sent: Friday, June 08, 2012 12:21 PM
To: larryupthegrove; ptykodi at tykodi.com<mailto:ptykodi at tykodi.com>; Petrie, Glen
Cc: cloud at pwg.org<mailto:cloud at pwg.org>
Subject: RE: [Cloud] Updated Mapping and Model Drafts

I don't agree with combine the Cloud Print Provider and the Cloud Print System Service functionality.

There is nothing to prevent, and actually a lot to recommend/require, a Cloud Print Provider from supporting multiple Cloud Print System Services, based on a variety of performance, contractual and legal agreements/reasons.  It is not unusual that a customer's requirement for a cloud service be that the customer's data never reside on or be processed on a service that does not reside in a specified country.  With a multinational Cloud Print Provider, this would necessitate they provide multiple Cloud Print System Services on multiple pieces of physical hardware that resides in multiple countries).  In this scenario, a user/company/printer/other service needs to have a well know endpoint to start with (the Cloud Print Provider), from which it can be redirect as necessary to the appropriate system service, and ultimately the proper print service, based on information associated with a user's account.  If we combine the Cloud Print Provider and the Cloud Print System Service this account-base separation and redirection is no longer possible.

I also don't like the idea of renaming the Cloud Print Provided as the Cloud Print Registry, as registering a printer is only a small portion of it job.  It does not register a user, rather it authenticates a user account that was previously setup via a marketing/sale organization.  It does not register a Cloud Print System Service, rather it creates one or more Cloud Print Systems as dictated by the same marketing/sales organizations (based on customer requirements), with additional input from an IT organization.  It does not even really register a printer, rather it creates a Cloud-based Printer Service to receive and handle jobs for that printer

And yes, of course the term "Printer" in all of these diagrams should really be read as "Imaging".  It may be appropriate to do that now, and just limit the scope of Imaging to be printing for now.


From: cloud-bounces at pwg.org<mailto:cloud-bounces at pwg.org> [mailto:cloud-bounces at pwg.org]<mailto:[mailto:cloud-bounces at pwg.org]> On Behalf Of larryupthegrove
Sent: Thursday, June 07, 2012 2:44 PM
To: ptykodi at tykodi.com<mailto:ptykodi at tykodi.com>; 'Petrie, Glen'
Cc: cloud at pwg.org<mailto:cloud at pwg.org>
Subject: RE: [Cloud] Updated Mapping and Model Drafts


Glen raises some interesting points for the next discussion.  The challenge is that the activities in the cloud are provider dependent, so there could be a wide variety of implementations.

I would like to leave client, but possibly add a cloud print client as part of the association.  Long term I could see cloud print provider becomes cloud imaging provider, and "print" gets replaced with "scan", "fax", etc.  Then we can reuse a lot of the diagrams and work.


I updated the sequence drawings, adding a Print sequence and an Enumeration sequence.

ftp://ftp.pwg.org/pub/pwg/cloud/white/Cloud%20Print%20sequence%20drawingsupdate20120607.pdf
ftp://ftp.pwg.org/pub/pwg/cloud/white/Cloud%20Print%20sequence%20drawingsupdate20120607.vsd


Larry Upthegrove


From: cloud-bounces at pwg.org<mailto:cloud-bounces at pwg.org> [mailto:cloud-bounces at pwg.org]<mailto:%5bmailto:cloud-bounces at pwg.org%5d> On Behalf Of Paul Tykodi
Sent: Thursday, June 07, 2012 1:05 PM
To: 'Petrie, Glen'
Cc: cloud at pwg.org<mailto:cloud at pwg.org>
Subject: RE: [Cloud] Updated Mapping and Model Drafts

Hi Glen,

I like your choice of the name registry. I find myself continually getting confused as to the actual tasks undertaken by some of the components that live within the Cloud in our current model.

At least for me, the use of the word registry really helped with the conceptual understanding.

Thanks.

Best Regards,

/Paul
--
Paul Tykodi
Principal Consultant
TCS - Tykodi Consulting Services LLC

Tel/Fax: 603-343-1820
Mobile:  603-866-0712
E-mail:  ptykodi at tykodi.com<mailto:ptykodi at tykodi.com>
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From: cloud-bounces at pwgorg [mailto:cloud-bounces at pwg.org]<mailto:%5bmailto:cloud-bounces at pwg.org%5d> On Behalf Of Petrie, Glen
Sent: Thursday, June 07, 2012 12:05 PM
To: Petrie, Glen; William A Wagner; cloud at pwg.org<mailto:cloud at pwg.org>
Subject: RE: [Cloud] Updated Mapping and Model Drafts

Bill,

In fact, considering the functions of the Cloud Print System Service, the Cloud Print System Service should be called the Cloud Print Registry.   This is where the User, Print Services, Transforms, etc are registered.  It is the place where User-to-'Print Service' association is done.   It is the place where a lot of the security and access functionality is done (i.e User login, access token, etc.).   Now in the model diagram, the arrow going to the "cloud-boundary" now go the Cloud Print Registry.

[ I believe using system service in the name here will be a big problem later when we define an MFD and have the MFD system service.]

Glen


________________________________
From: Petrie, Glen
Sent: Thursday, June 07, 2012 7:46 AM
To: Petrie, Glen; 'William A Wagner'; 'cloud at pwg.org'
Subject: RE: [Cloud] Updated Mapping and Model Drafts

Bill,

Can the methods of the Cloud Print Provider be moved to the Cloud Print System Service; thus, leaving the Cloud Print Provider as an environment (basically, the collection of all Cloud Print entities in a specific cloud implementation).

Glen


________________________________
From: Petrie, Glen
Sent: Thursday, June 07, 2012 7:42 AM
To: Petrie, Glen; 'William A Wagner'; 'cloud at pwg.org'
Subject: RE: [Cloud] Updated Mapping and Model Drafts

Bill,

Comment on Cloud Print Provider.

In the current definition, the Cloud Print Provider is defined as an environment but then it methods.   If the Cloud Print Provider provides methods and can perform operations then it a software entity and not just an environment.

Glen


________________________________
From: cloud-bounces at pwg.org<mailto:cloud-bounces at pwg.org> [mailto:cloud-bounces at pwg.org]<mailto:%5bmailto:cloud-bounces at pwg.org%5d> On Behalf Of Petrie, Glen
Sent: Thursday, June 07, 2012 7:16 AM
To: William A Wagner; cloud at pwg.org<mailto:cloud at pwg.org>
Subject: RE: [Cloud] Updated Mapping and Model Drafts

Bill,

I was reviewing the definition of the Client and I believe the Client does not provide the association function.  It must be a Cloud entity, such as the Cloud Provider or the Cloud Print Provider (i.e. Google Cloud Print), that creates and maintains the association between the User and one or more Printers (Cloud Print Services).  The Client (acting as a proxy for the User) may or may-not actually display the list of User Associated Printer Service (i.e. the Client may be an embedded Client).


The Client is the software component that implements the interface between the User and the Cloud Print Provider to create an Association; and to enumerate available Cloud Print Services. The Client is also implements the interface between the User and the selected Cloud Print Service to submit a Print Job and to query Job and Printer Status.

I would like to suggest the following

The Client is the software proxy implementing an interface between the User and the Cloud Print Provider for selection of a specific Cloud Print Service from an enumeration list of User associated Cloud Print Services .  The Client provides an interface for setting job elements which are communicated with the specific Cloud Print Service  The Client obtains and provided the User with job queries and Printer status.

I would like to also suggest that we name "Client" as "Cloud Print Client" since this is a specific type of generic Client that provides the interface specifically between the User and the Cloud Print solution.

Glen


________________________________
From: cloud-bounces at pwgorg<mailto:cloud-bounces at pwg.org> [mailto:cloud-bounces at pwg.org]<mailto:%5bmailto:cloud-bounces at pwg.org%5d> On Behalf Of William A Wagner
Sent: Wednesday, June 06, 2012 7:34 PM
To: cloud at pwg.org<mailto:cloud at pwg.org>
Subject: [Cloud] Updated Mapping and Model Drafts

Interim level, definitely work-in-progress drafts reflecting considerations during the June face-to-face meeting are posted as follows:

ftp://ftp.pwg.org/pub/pwg/cloud/wd/wd-cloudmap10-20120604.pdf
ftp://ftp.pwg.org/pub/pwg/cloud/wd/wd-cloudmap10-20120604-rev.pdf
ftp://ftp.pwg.org/pub/pwg/cloud/wd/wd-cloudmap10-20120604-rev.docx

and
ftp://ftp.pwg.org/pub/pwg/cloud/wd/wd-cloudmodel10-20120606.pdf
ftp://ftp.pwg.org/pub/pwg/cloud/wd/wd-cloudmodel10-20120606-rev.pdf
ftp://ftp.pwg.org/pub/pwg/cloud/wd/wd-cloudmodel10-20120606-rev.docx

Note that un-redlined versions of MS Word documents may be obtained from redline versions.

Comments are appreciated.

Thanks,

Bill Wagner

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