Passwords and codes for personalized surveys

Participants’ access to personalized questionnaire is protected by passwords or integrated codes. Participants within a personalized survey get a code which is sent to them via mail and enables the user to access the questionnaire. The codes are recompiled automatically by the internal password module of the survey centre. All codes consist of sixteen digits. They are alphanumeric (a-f, 0-9) and of course unique, i.e. the same password can not be generated twice.

As soon as the participant has completed the questionnaire the code will be blocked so that he cannot take part in the survey again. However, participants can break off the operation and resume filling in the questionnaire later on. If required, they can as well change their answers.