wsper | an abstract SOA framework SOA made simple 2007-11-03T01:30:02Z Jean-Jacques Dubray jdubray@gmail.com urn:uuid:80b25e29-f059-29a0-a22C-9302901a1bd4 Atom Publishing Protocol 1.0 Metamodel published urn:uuid:1003a696-cfb2-4f39-0bca-83da344abe2a 2007-12-12T01:30:02Z

I have created a UML metamodel for APP 1.0 to help with REST discussions.

 HTTP/1.1 Metamodel published urn:uuid:1003a696-cfb2-4f39-0bca-82da344aba2a 2007-12-12T01:30:02Z

I have created a UML metamodel for HTTP/1.1 to help with REST discussions

 WADL Metamodel published urn:uuid:1a03e696-cfb2-4f3b-0bca-82da344a2a6a 2007-11-03T01:30:02Z

I have created a UML metamodel for WADL.

 SCA Assemblies for Web Services urn:uuid:1503e696-cfb8-4f3b-0bca-82da344a1a6a 2007-11-03T01:30:02Z

I spoke for 5 minutes with David Chappell at the SOA and BPM conference after his talk. I hate to be at odds with Dave because he takes pride, rightfully so, to express himself with great precision. I am glad to see that we both agree that assemblies are a critical piece of SOA -this means that Microsoft will add them somehow. The point of disagreement comes from the fact that Dave says that after reading the spec and talking with different SCA authors it is clear that SCA domains cannot span multiple vendor implementations. I think we are disagreeing on the interpretation of this statement.

In a pure Web Service assembly (including BPEL service implementations) this constraint is artificial. Sure enough, one vendor infrastructure should be in charge of "deploying" the assembly definition to the different participants but requiring that all web services run in the same container is contrary to the most basic SOA principles.

I made the point to Dave that the only correlation mechanism you needed to make an SCA assembly real was the ability for a service to expose assembly specific endpoints which is very common in today's web service containers. He seemed to be caught off guard by this remark.

Stay tuned, I will show how (or how not) SCA supports the notion of Web Service assemblies.

 BPEL4PEOPLE 1.0 Metamodel published urn:uuid:1203e696-cfb8-4f3b-abaa-80da344efa6a 2007-10-19T01:30:02Z I published the first pass at BPEL4PEOPLE 1.0 metamodel including the links to BPEL 2.0 BPMN 1.0 Metamodel published urn:uuid:1001c696-cfb8-4f3b-aaaa-80da344efa6a 2007-10-19T01:30:02Z I published the first pass at BPMN 1.0 metamodel. The mapping to BPEL will be treated separately Setting out for SCA urn:uuid:1001c695-cfb8-4ebb-aaaa-80db344efb6b Henning Blohm, Java EE Software Architect at SAP and Co-Chair of the SCA-J Technical Committee provides his perspective on SCA as a cross-technology programming model integration. He claims that for vendors SCA lowers the marginal costs of providing implementation or binding technology and for users it reduces the marginal costs of using them. 2007-10-18T01:30:02Z WS-BPEL 2.0 metamodel published urn:uuid:1001c695-cfb8-4ebb-aaaa-80da344efa6a 2007-09-29T01:30:02Z I published the first pass at WS-BPEL 2.0 metamodel. The attributes of activities are hidden to keep the diagram readable.