The document discusses different methods for integrating Aras Innovator with external systems. It outlines integration technologies from flat file integration to federation integration in order of increasing capability and implementation effort. All integration methods ultimately involve converting data to and from Aras Markup Language (AML) for communication between systems and Aras Innovator. Examples of specific integration technologies described include flat file integration using method code to convert files to AML, and AML-lite integration transforming external XML to AML using XSLT.