In-line scanning of documents , scanning of questionnaires is one of the ways to quickly process the results of a survey of a wide range of respondents .
Content
Process Stages
Scanning Paper Documents
The effectiveness of this stage is determined to a greater extent by the quality of the equipment used.
Modern in-line scanners are equipped with an automatic document filing system, which reduces manual labor and achieves digitization speeds of up to 200 images per minute per scanner.
Recognition of information
At the recognition stage, software OCR components are used. The quality of the resulting records depends on the degree of readiness of the questionnaire for machine reading and the thoroughness of software pre-configuration.
Data Verification
Automatic verification of the data obtained after recognition is performed. The most common checks are checking for the expected data type (number / checkbox / string), checking for the presence of values. All problem areas noted at this stage are marked for transmission to the correction stage.
Data Correction
The operator processes the information obtained at the stage of data verification and makes changes to the resulting record manually (keyboard input, selection from a list of predefined answers). At this stage, the “training” of the software package is repeated. All accumulated edits are analyzed by algorithms and are used for further work with this set of profiles.
Data Export
The digitized structured data is uploaded in the required format for further analysis of the survey results.
Questionnaire input systems performance
At the stages of scanning and recognition of questionnaires, the applied technique plays an important role. Using professional industrial scanners and powerful recognition stations will allow you to achieve maximum digitization speed (about 96,000 questionnaires in 1 working day for 1 scanner). The bottleneck in obtaining a finished database is the data correction phase. To ensure a minimum number of errors, operators manually process the information marked at the stage of data verification. The procedure takes a lot of time and requires serious specialized training for employees.