The following table compares three direct data... | Information and Communication Technology 0417 | Paper 1 Mock 01 | Theory

Question 1 Report

The following table compares three direct data entry methods.

Feature	Barcode scanner	OMR	OCR
Type of data captured	Product codes from barcodes	Position of marks on a form	Printed or typed text
Speed
Accuracy

(a) Complete the Speed and Accuracy rows of the table. [6]

Answer

Answer Details

(a) The completed table comparing speed and accuracy of three direct data entry methods:

Feature	Barcode scanner	OMR	OCR
Type of data captured	Product codes from barcodes	Position of marks on a form	Printed or typed text
Speed	Very fast; a single product code can be read in under a second. [1]	Very fast; can process hundreds of pre-printed forms per minute automatically. [1]	Slower than barcode and OMR because the software must analyse and recognise individual character shapes in the scanned image. [1]
Accuracy	Very high accuracy as long as the barcode is not damaged or smudged. [1]	Very high accuracy because it only detects the presence or absence of marks in fixed positions, a simple binary decision. [1]	Lower accuracy than barcode and OMR; errors can occur with poor print quality, unusual fonts or handwritten text. [1]

The following table compares three direct data entry methods. Feature Barcode scanner OMR OCR Type of data captured Product codes from barcodes Position of ...