Abstract: Systems and methods for building and executing a test for a software application. The system includes a database for storing variable value protocols, output files, and data related thereto. A computing device is in communication with the database and is configured to create and/or modify the variable value protocols. The computing device includes an interface having a plurality of sections for displaying the variable value protocols and variables related thereto. The computing device is configured to receive values to define selected variables of the variable value protocols and receive values from a data fabrication engine for variables that were not selected. The computing device is configured to notify a user that a current version of the software application treats one of the selected variables different than a previous version of the software application.