AppScan® Source for Development server mode and local modeThe AppScan® Source for Development plug-ins can be used with or without an AppScan Enterprise Server. In server mode, you connect to the server to run scans and access shared data, just as in previous product versions. In the new local mode, AppScan Source for Development runs without ever connecting to an AppScan Enterprise Server - and you cannot access shared items such as filters, scan configurations, and custom rules.