The current model that is used by the application is defined in ExampleStateModel.ts. It was defined by the GCS project and uses four different questionnaires that are send to the study participant based on specific rules.
The following image shows the different questionnaires and under what condition each one is send to the participants.
Questionnaire State Chart
If the requirements regarding the questionnaire state model are not met by the given model defined in ExampleStateModel.ts, you can provide your own model.
All you have to do is implement the given interface in StateModel.ts and set the values depending on your requirements.