You can attain a higher level of reuse of functions, test cases and parameters, if you define and manage ECU parameters and test vectors in separate files. vTESTstudio lets you access the parameters for a test sequence from all implementation languages.
Parameters and test vectors can be defined as scalars and as a list. These lists make it very convenient for you to perform iterations of the test sequences, e.g. if you wish to execute different variants of a test vector with the system under test.
A convenient editor is available to you in vTESTstudio for editing the parameter files. However, it is also possible to edit the files in an external editor, e.g. in Microsoft Excel, by saving the files in a simple csv format.