MSDN Webcast: Windows Communication Foundation Top to Bottom (Part 03 of 15): Contract Versioning (Level 200)  

Clients rely on contracts defined by the Web Services Description Language (WSDL) to communicate with services. The WSDL contract describes the operations available at each service endpoint and the format and schema for messages related to each operation, including the schema for complex types exchanged between parties. Making changes to contracts once they have been published is a delicate matter, as that can create compatibility issues with existing clients. The only option is to ensure backward compatibility or expose a new version of the contract for new clients. In this webcast, we focus on approaches to version tolerance and contract versioning. We provide guidelines for strict and non-strict approaches to contract versioning, describe how to design service contracts and data contracts to be version tolerant, and illustrate how to handle explicit versioning of service contracts and data contracts with the least impact to business components that support your services.

Presenter: Michèle Leroux Bustamante, Chief Architect, IDesign Inc.

Michèle Leroux Bustamante is chief architect of IDesign Inc., Microsoft Regional Director for San Diego, Microsoft Most Valuable Professional (MVP) for XML Web services, and BEA Technical Director. At IDesign, Michèle provides training, mentoring, and high-end architecture consulting services, focusing on Web services, scalable and secure architecture design for Microsoft .NET, interoperability, and globalization architecture. Michèle is also events director for the International Association of Software Architects (IASA). Visit www.thatindigogirl.com for more information on her book, Learning WCF (O'Reilly, 2007).


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