Every interview is saved automatically. At the same time a record is being made in the background, which takes a note of every event. Date and time of survey, breaking off the interview - all this data and the events are being recorded and are used for interviewer-controlling.

Once is not enough - that is why we save the data additionally on a second data-medium - a SRAM card. This handy medium doesn´t only convince because of it´s creditcard-size for easy and quick mailing, but also stands out against other disks for being so robust.

That is why VALID RESEARCH usually has the raised data at it´s disposal a day after field completion.