Microsoft Composite Application Library:
The Composite Application Guidance for Windows Presentation Foundation (WPF) and Silverlight is a set of guidance designed to help you more easily manage the complexities you may face when building enterprise-level WPF client applications and Rich Internet Applications (RIAs) with Silverlight.
SAP Composite Application Framework:
SAP Composite Application Framework (CAF) enables a service-oriented architecture environment for building and running composite applications. CAF supports the development of new business solutions across people, information, and processes by unifying elements from all layers of the SAP NetWeaver technology platform.