Fill in the questionnaire here: http://www.questionpro.com/a/TakeSurvey?id=4644196
The questionnaire is divided into 6 chapters. You can move to the next page if pressing button „save and continue” (below). The button gives a choice to interrupt answering and continue later on starting from the next page. You can't move backward and make any changes in your answers if „save and continue” button is pressed.