Back-to-Back Testing

This example shows how to do back-to-back testing. The objective is to compare signals run in a MIL environment, with the same signals run afterwards in a SIL environment.

Open the file Help|Examples|06 Test Methods|01 Back-to-Back-Testing. Select Execution|Platform Configuration to open the Platform Configuration dialog. The platform configuration has already been set up.

Back-to-back testing

A MIL and SIL platform are already configured. The MIL platform is executed first, the SIL is executed immediately after. The SIL platform uses the MIL test execution as back-to-back source. You can configure many other options in the back-to-back settings for the SIL test execution but at least, the signals for the comparison as well as the tolerances need to be specified. During the SIL test execution, signal comparisons with MIL are made and reported.

To compare signals which are run in a MIL test environment, with the same signals run afterwards in a SIL test environment, select Execution|Execution Configuration to open the Execution Configuration dialog. The MIL platform is the reference platform and the SIL platform takes the default configuration of the MIL platform as reference.

The back-to-back platform configuration

Click Set up comparison behavior to configure the signal settings for the comparison. In channels table of the Signals section, select all channels found in the Declaration Editor. All these channels are compared against each other.

Back-to-back signal settings

In this example, the signals are compared with no tolerance at all. It might be useful to add different tolerance values to the respective columns.

If more than one tolerance value is entered, the smallest measured delta will be the result.

Click Run in the Execution Configuration dialog to start the back-to-back testing and open the test report to display the results. You can see in the Build Progress dialog that no assessment has been executed for the MIL platform as it is the reference platform. The assessment result hence is INCONCLUSIVE . The assessment has only been executed for the SIL platform.

Back-to-back results

Back-to-back tests can also be set up in the Signal Comparison assesslet. For the differences between the back-to-back set up in the Execution Configuration dialog and in the Signal Comparison assesslet, see Back-to-Back Testing.