OMR is an input device of the computer. It means Optical Mark Recognition. Optical Mark Recognition acknowledges human-created marks on a specially printed paper or journal used in experiments, surveys, and so on. It is widely used where a huge number of candidates apply and to evaluate data with consistency and immediate effect. Pieces of information from the documents can be read using the OMR reader.
A datasheet is scanned via a scanner that focuses a light beam on the form paper and identifies areas of minimal light transmission, i.e. marked areas reflecting less light compared to blank zones. It provides an error of less than 1 percent.
Uses of Optical Mark Recognition
- Insurance and Banking applications.
- Evaluation & Feedback form.
Advantages of OMR
- Previously, a special type of paper, ink, and input reader were needed for the OMR systems that limited the questions being answered.
- People may now ask the right questions and develop their models.
- It takes less than five milliseconds on average for testing.
- Users may use circles, marks, squares, ellipses of any kind.
Limitations of Optical Mark Recognition
- Users can not gather large volumes of text as it complicates the results.
- Data can be lost in large text.
- Only multiple choice questions are favorable.