Kjell-Sverre and Jean-Jacques revisit the principles of contract design focusing on the concept of compatible contract based on XML, XML Schema and WSDL extensibility to foster service reuse and complement Governance. The article includes a novel approach to manage message types in relation to an enterprise data model.
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In this article, Ian Robinson discusses how "consumer-driven contracts", in the form of "stories for services" and unit tests exchanged between service development streams, can strengthen the service-oriented development lifecycle. In contrast to contracts defined from the POV of the provider, consumer-driven contracts result from combining the demands of all known service consumers.
In his new comment, IBM’s Kyle Brown examines three different common anti-patterns, or "worst practices," that can make adopting Web Services and SOA implementations more difficult than it needs to be.
Google caused a stir by releasing Protocol Buffers, a binary serialization format. We take a look at what exactly Protocol Buffers are and what alternatives are available in ASN.1 or Facebook's Thrift.
Ontologies and Ontological management have become more popular as enterprise architecture has gained ground in organizations. As tool support has become available and the semantic and ontological concepts are being understood, more players, like the UMBEL project, the AKSW group, and consultant Dan McCreary have come to the table with contributions.
Today, Shyam Pather, Principal Development Lead on the Data Programmability Team at Microsoft, is giving a presentation on LINQ to XML: Visual Studio 2008, Silverlight, and Beyond at the XML 2007 Conference in Boston. He talks about the current and future technologies surrounding LINQ to XML.
In a recent posting, ZapThink analyst Ron Schmelzer tackles the belief that a system is either loosely-coupled, or it isn’t. Although the importance of loose-coupling has been known for some time, the dialogue around this post has garnered some interesting discussion.
Data Services are increasingly generating interest in Service Oriented Architectures. David Webber wrote an article detailing some of the difficulties to define contracts for AWS and some of the solutions using the Content Assembly Mechanism (CAM).
10 reasons to consider using RELAX-NG in place of W3C XML Schemas as your XML schema language.
