Web questionnaire app

Hi all,I have a questionnaire app. for web clients. I don’t know how to ensure that a person is only one questionnaire.

I have to control it in document oppenning.

Thanks,

Subject: Web questionnaire app.

The only true way I know of is if your system has some sort of login process.

Using techniques like cookies, IP Address, don’t work because people can delete cookies or go to another machine.

If the information is such that people are (Very) concerned there name maybe associated with the response, the best thing you can do is generate a random ID and Password that is mailed to your survey people and configure your system to not store the ID and PW with the survey.

When the person enters a valid ID and Password they can enter a survey and it gets cross off your internal list. If they try and get in again the system says that ID and PW has been used.

As the ID and PW are NOT associated with the Survey it also means in pratice tehre is no way to pull the survey back up the make changes.