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In another "virtual panel session", we took the opportunity to talk with representatives of the new OASIS BPEL4People Technical Committee and get their feedback on just why we need this work. Apart from asking them what BPEL4People (and WS-HumanTask) are all about, we asked them how this relates to other BPMN efforts and what else we can expect in this area.
Udi Dahan describes an experience implementing a new order system in which large size message passing was affecting the scalability and even bringing down servers in the system. The article describes how they diagnosed the problem and their solution, by "changing our service contracts and introducing stateful interactions we were able to manage the performance critical state of the system."
After 6 months of work, Spring Web Services 1.5.0 has been release. Based off contract-first development using SOAP service development, Spring-WS can be manipulated through XML to create document-driven Web services. Some of the highlights of the release include:
Jeremy Deane, Technical Architect at Collaborative Consulting, takes a look at writing a Restful ESB using NetKernel. He explains how commercial ESB's were considered and NetKernel was ultimately used to provide the implementation.
In this article, Steve Vinoski explains how to build RESTful Web services using the Erlang programming language and the Yaws web server. While Steve considers most Web frameworks failures simply because they were a poor match to the problem, he believes Yaws and Erlang are a better match for RESTful development than many other language frameworks that were built specifically for that purpose.
In this interview, recorded at QCon SF, Stefan Tilkov talks to noted Web services expert and open source developer Dan Diephouse about the benefits of using the Atom Pub and Atom standards for business applications, pros and cons of using REST, and upcoming features of the Apache CXF web services stack.
In this interview, Stefan Tilkov talks to Sanjiva Weerawarana about web services and REST, about core standards that are essential for web services standards, open source SOA tooling, scripting languages and web services, and the strategy of WSO2 in providing open source middleware.
In this presentation, Scott Davis provides a pragmatic, down-to-earth introduction to Web services as used in the real world by public sites, including SOAP-based, REST and POX-style examples. While the buzzword density leaves nothing to be desired, the presentation contains a very accessible introduction to the core Web services standards.
In this presentation, Mikkel Hippe Brun, Chief Consultant at Danish National IT and Telecom Agency, introduces Denmark's national Service Oriented Infrastructure, which is based on a number of replicated UDDI registries and interoperability profiles based on the WS-*architecture and the UBL standard. Among the topics covered is the difference between SOA within and across company boundaries.
Composite Software offers a new level of granularity when compared to SaaS (Software as a Service). Composite Software is about enabling "right-sourcing", i.e. move (or keep) arbitrary small or large elements of functionality wherever it is the most cost effective to operate them, not just entire systems. Economically, "right-sourcing" is far more efficient than "outsourcing" and SaaS. The goal of this book is start by understanding today’s software construction processes and technologies and explore why and how it should be evolved to support core composition mechanisms.
This book argues that for SOA to succeed we must move our thoughts away from the implementation technologies and towards the "what" of the business. Using a straight-forward, pictorially driven, methodology the book explains who to discover what the business services really are and how to construct an overall business service architecture.
