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Subject: RE: [trans-ws] Re: Notification information[Scanned]


Our service works by the client polling our server.  They can set a polling frequency within acceptable bounds.  

A 'CompletedFiles' message is sent, that returns a list of the references to files that are now complete.  The client need only poll when necessary (when there are outstanding files), and most of the time the response is empty, i.e. there are no files ready for collection.

This works very well, and since all poll messages are very small, the server performance is not affected.

E mail seems a bit 'un-automated', and strays off the web service, and to insist on a client having a web service in return expands the deployment time, and will limit the use.  

The nice thing about sticking to the single web service with polling is that all messages are in the same form so the client's integration job is easy and the firewall settings are probably already in place. 

Any comments would be greatly appreciated.



Ian Harris 
Technical Director 
20 Wood Lane 
Leeds LS6 2AE 

tel (direct): +44 (0) 870 748 8058
mobile: +44 (0)7710 318477
fax: +44 (0) 870 748 8001 
-----Original Message-----
From: Bill Looby [mailto:bill_looby@ie.ibm.com]
Sent: 14 March 2003 09:54
To: trans-ws@lists.oasis-open.org
Subject: [trans-ws] Re: Notification information[Scanned]

I'm afraid the Notification section was a phantom section I'd intended to
add (hadn't realised I still referred to it). Sorry.

Essentially what it amounts to, is dealing with the fact that a Web Service
is a client initiated interface, so there's no obvious way for the server
to "push" information back. The way I see it there are two primary options
in this regard -

   1. Email notification
      A return email address could be presented by the client, when
      accepting the quote. There would then be a standard notification
      message sent (we would have to define the format, which would include
      the job ticket) to this address on job completion (or on job error ?
      query ?)

   2. Presentation of a return Web Service
      We would have to define another standard service that could be
      offered by a client for return notification. The idea is that the
      client would simply have to supply the URL at which this service is
      available. This is more flexible, but many users may not be in a
      position to supply it. There are two reasons for this -
         Smaller users may not be hosting their own sites, or may not even
         have a fixed URL
         Corporate users may have a large security overhead in presenting
         an external web service

Most workflows should be able to work off email notification, but it's
low-tech and can be awkward. Probably a requirement to support this for
lower tech users however, even if we do the return service aswell.


Bill Looby
Architect, Web Globalisation Technologies
Dublin Software Lab
IBM Ireland
Phone (Internal) : 166796
Phone (External) : +353 1 7046796

                      "Reynolds, Peter"                                                                                      
                      <Peter.Reynolds@bown        To:       "'bill_looby@ie.ibm.com'" <bill_looby@ie.ibm.com>                
                      eglobal.ie>                 cc:                                                                        
                                                  Subject:  Notification information                                         
                      13/03/2003 16:21                                                                                       

Hi Bill,

The Trans-WS TC was looking at the rtf which you forwarded in January and
could not find the 'Notification information' mentioned in the mail.

Can you explain to the TC what this means.



Peter Reynolds, Software Development Manager
Bowne Global Solutions
3, West Pier Business Campus, Dun Laoghaire, Co. Dublin, Ireland
Tel: +353-1-202-1280
Fax: +353-1- 202-1299
Web Site: http//www.bowneglobal.com

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