to discuss migration drivers and issues in light of the SMB environment. This discussion includes a list of migration options and a set of general migration techniques that can be utilized while migrating the various parts of a business integration platform. The subsequent sections provide a comprehensive description of the BizTalk and WBIS platforms. After gathering the required insights about BizTalk, WBIS, and the various migration aspects, we illustrate the component mapping between BizTalk and WBIS. This section suggests a set of migration techniques and a migration path for each component, to allow complete migration from the BizTalk environment to WBIS. 2.1 Business integration environment and platforms Business integration (BI) involves taking a set of distinct, disconnected business applications, processes, people, and data, and combining them into a set of applications, processes, people, and data that are more productive, integrated, easy-to-maintain, and easy-to-control. This integration is usually implemented so that applications and processes can share data and state, primarily when the applications and processes deal with similar types of business data. The applications and processes that may require integration come from all possible sources: packaged applications, custom (in-house) applications, and applications belonging to other businesses (for business-to-business scenarios). This integration often involves some form of enterprise application integration