RE: [wsbpel] Issue - 72 - Background information about WS-I BP1.0 recommendations on use of WSDL1.1

Bindings are out of 
scope for the BPEL spec, but we are likely to talk about them in the use cases, 
so we probably cannot leave them out of the picture 
entirely.

 

Ugo

  
-----Original Message-----
From: Liu, Kevin 
  [mailto:]
Sent: Thursday, October 02, 2003 9:47 
  AM
To: ''
Subject: [wsbpel] 
  Issue - 72 - Background information about WS-I BP1.0 recommendations on use of 
  WSDL1.1

  

  
Hi 
  all,

  
 

  
Attached please find 
  a set of slides which provide a summary and some details about the BP1.0 
  recommendations on the use of WSDL1.1.

  
 

  
After a preliminary 
  analysis on these BP1.0 recommendations, I feel that we should adopt WS-BP1.0 
  for BPEL.  Below are my observations:

  
 

  
- BP1.0 provides many 
  valuable clarifications on use of WSDL1.1. These clarifications should be 
  reflected in all WSDL examples in BPEL spec

  
 

  
- The following BP1.0 
  constraints affect portType definitions and should be considered for 
  BPEL

  
n       
  XML1.0 is mandated 
  for WSDL definitions - OK, that's the status quo. 

  
n       
  XML schema is the 
  only conformant type system - OK, I believe that's also the status quo. BPEL 
  only use XSD for data type definition

  
n       
  Disallow operation 
  overloading - operation name must be unique within a portType - should be 
  enforced. I don't see anything in BPEL relies on this 

  
n       
  Disallow out-bound 
  operations - OK, that's the status quo

  
 

  
- The following 
  constraints are for bindings, there is no direct conflict with 
  BPEL

  
n       
  SOAP over HTTP is the 
  only conformant binding -OK, we only provide conformant portType definition, 
  bindings are up to the services implementers. 

  
n       
  Disallows (soap) 
  encoding - OK, same as above

  

  
Best Regards, 
  
Kevin 

  
-----Original 
  Message-----
From: ws-bpel 
  issues list editor [mailto:] 
Sent: Wednesday, October 
  01, 2003 1:14 
  PM
To: 
Subject: [wsbpel] Issue - 72 - What to do 
  with WS-I BP1.0?

  
 

  
This issue has been added to the wsbpel issue list. 
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  Issue - 72 - What to do with WS-I BP1.0? 
  
  
Status: 
  open
Date added: 1 Oct 
  2003
Submitter: Liu, Kevin
Date submitted: 01 October 
  2003
Document: 
  Specification
Description: 
  WS-I BP1.0 provides clarifications and constraints on the use of WSDL1.1. We 
  need to investigate and decide if BPEL should be aligned with BP1.0. In 
  particular, a few questions need to be answered: 

  
1.      
  Would BP 1.0 be restricting BPEL to the point that 
  some of BPEL's functionality would not be available? 

  
2.      
  Would the fact that BP 1.0 only addresses the 
  SOAP/HTTP binding imply that also BPEL should be limited to that type of 
  binding? 

  
3.      
  Should a BPEL process be offered as a Web service 
  that is BP 1.0 compliant? 

  
4.      
  Would it be fair to limit BPEL use to interacting 
  with BP 1.0 compliant Web services only? 

  

Changes: 1 Oct 2003 - new 
  issue

  

  

  
  

  
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