1.InfoPath’s XSN file is composed of schema file(*.XSD) to XML data, XML   stylesheet file(*.XSLT) for making data visible in structured way, script file(*.JS)   or assembly file(*.DLL) having business logic. Please refer to below graphic 1. 2. InfoScope opens XSN file posted to Internet and Manifest file. 3. Based on file information in Manifest, InfoScope loads all related files through     DOM data tree. Please refer to below graphic 2. 4. Users input data in loaded forms and get requested data via web services. 5. Finished forms will be interoperable with enterprise applications via web services,    and it can be posted to WSS(Windows SharedPoint Service) team site.    Please refer to below graphic 3.