refers to checking and correcting data in dialogue mode using video terminals. It can be applied during data entry or on data that are already in machine-readable form. The questionnaire is immediately reviewed after adjustments are made. The results are shown on a video terminal and the data editor is prompted to adjust the data or override the error flag. This process continues until the questionnaire is considered acceptable by the automated review process. Then results of the next questionnaire's review by the auto review processor are presented.