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 

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Sent: Wednesday,
 October 01, 2003 1:14 PM

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Subject: [wsbpel] Issue - 72 -
What to do with WS-I BP1.0?

 

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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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WS-I BP1.0 Recommendations On use of WSDL1.1.ppt