Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. XApp (SAP AG Composite Application), is a collective term applied to software products built following the SAP xApps convention and running on a SAP NetWeaver application server. INcluding a range of software products from SAP AG, solutions by SAP partners and customer made composite applications. XApps are commonly targeted at specific industries or are geared towards vertical applications common across a range of industries. XApps typically have a smaller footprint than some of the company''s other business applications such as MySAP. XApp is the general term for applications based on the SAP ESOA, i.E. Applications using SAP enterprise SOA services. SAP XApps are composite applications which can combine Web services and data from multiple systems. THe application architecture is defined by the SAP Composite Application Framework within the SAP NetWeaver platform.