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Marc Chanliau

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Top Stories by Marc Chanliau

One of the challenges IT organizations face is how to propagate identities in complex business processes that are commonly found in Service Oriented Architectures (SOAs). Identities, which are passed from one service invocation to the next in a business process, give the process a user context. Identities can be used to determine access rights to SOA services and for audit and compliance purposes. For example, consider a procurement business process for an application that's used by a number of purchasing agents. Each agent has a different purchasing privilege. Say a senior agent can purchase up to $50,000 in a transaction, while a junior agent can buy only $25,000. If the business process that enables the purchase is composed of a number of SOA services, each service ... (more)

Enterprise Web Services Security: A Reference Architecture

Web services are past the initial marketing hype. Early Web services were part of experimental one-off projects within a single enterprise department. Now, larger Web services deployments are moving outside of the enterprise firewall to better leverage existing business partnerships and value chains. Larger Web services projects come with a price, however. They are more complicated to imp... (more)

Enterprise Web Services Security: A Reference Architecture, part II

Last month (WSJ, Vol. 4, issue 2), we looked at how Web services should not depend on specific security environments and rules but should be managed as part of all of an enterprise's corporate data assets such as Web applications, ERP systems, and in-house applications. We recommended that Web services security be integrated with the overall enterprise security infrastructure at the very ... (more)

The Security Challenge

This article focuses on the value of Web services security. It is important to understand what Web services are and their challenges, particularly related to security. Traditionally, companies have relied on conventional, transport-level security but this approach has its limitations. The market now offers complementary XML-based solutions designed to secure documents used in Web service... (more)