SAP Position on Web Services Choreography

March 13 -14, 2003W3C WS Choreography WG

Ivana Trickovic, Canyang Kevin Liu

SAP AG 2002, Title of Presentation, Speaker Name / 2

Why are we here?

Web Services technology plays a critical role in our product strategies

We have been actively contributing to various standardization efforts, including XMLP, WSD, and WSA

WS Choreography is one of the essential next steps to make WS work for large-scale business applications

SAP AG 2002, Title of Presentation, Speaker Name / 3

What do we expect?

Convergence, not reinvention Leverage existing specifications in workflow, BPM area Take existing web services choreography proposals as initial inputs

ONE vendor-neutral choreography standard Royalty Free Fit with overall web services architecture Represent wide industrial consensus

SAP AG 2002, Title of Presentation, Speaker Name / 4

How should we work?

Don’t wait for 12 months to present the first result Work on mini-steps Present gradual results timely Modularize problem domains if necessary

Expectation is high Demonstrate the capability of converging industrial opinions within a

short time frame

SAP AG 2002, Title of Presentation, Speaker Name / 5

What’s the scope?

In

Description of externally observable behavior

Out

Description of internal Implementation

Transaction protocol

Security protocol

Reliability

SAP AG 2002, Title of Presentation, Speaker Name / 6

Our requirements

Multi-party interactions

Long lasting conversations Describe the order of messages Specify logic units of work Indication of transaction participation

Engagement in multiple conversations at the same time

Conversation identification

Dynamic participation Establish links between services at run-time

Identify “conformant” relationship between external and internal behavior

SAP AG 2002, Title of Presentation, Speaker Name / 7

Our commitments

We are committed to make this WG a success

Initial contributions Co-author and co-submitter of WSCI

Dedicated for active participation in this WG Use cases and requirements Resources for editorship of deliverables Facility for F2F meetings Experiences in workflow and BPM areas