SharePoint 2010 Business Data Connectivity Services (SharePoint 2010 JumpStart)

Microsoft SharePoint Server 2010 and the Microsoft Office 2010 suites include Microsoft Business Connectivity Services, which are a set of services and features that provide a way to connect SharePoint solutions to sources of external data and to define external content types that are based on that external data.
External content types resemble content types and allow the presentation of and interaction with external data in SharePoint lists (known as external lists), Web Parts, Microsoft Outlook 2010, Microsoft SharePoint Workspace 2010, and Microsoft Word 2010 clients. External systems that Microsoft Business Connectivity Services can connect to include SQL Server databases, SAP applications, Web services (including Windows Communication Foundation Web services), custom applications, and Web sites based on SharePoint. By using Microsoft Business Connectivity Services, user can design and build solutions that extend SharePoint collaboration capabilities and the Office user experience to include external business data and the processes that are associated with that data.