When you have started Silk Test Workbench from eCATT, you can define a test using eCATT and record it using Silk Test Workbench as the eCATT external testing tool. This provides a central point from which to manage test and lets you use scripting capabilities within Silk Test Workbench to record and test target applications. The test recorded in Silk Test Workbench can be either a .NET script or a visual test.