This IBM Redbooks publication introduces you to business-to-business (B2B) solutions based on IBM WebSphere BI Connect for B2B. In Part 1, you learn about B2B technologies and features, architecture and integration options of WebSphere BI Connect. Part 2 describes the implementation of three editions of WebSphere BI Connect on Microsoft Windows and AIX. Within an environment of four trading partners, you learn step-by-step how to implement various B2B scenarios. You learn how to integrate an FTP server with WebSphere BI Connect so that you still have the visibility and manageability of WebSphere BI Connect. This part also demonstrates how to implement an AS2 exchange of electronic data interchange (EDI) documents and custom XML documents, as well as how to secure such exchanges via digital signatures and encryption. Part 3 discusses the integration between WebSphere Data Interchange and WebSphere BI Connect. It shows you how the two products can work together in routing and transforming documents to and from trading partners. Part 4 discusses how to implement various user exits that allow you to use a custom transport, custom packaging, and custom formats. Part 5 explains how you can enable RosettaNet support in WebSphere BI Connect. It shows a way to test this support using standard utilities and viewers in WebSphere BI Connect. Please note that the additional material referenced in the text is not available from IBM.