There are numerous efficient data entry methods are available and choosing one

of them is shaped by many factors. There are two well$-$known which are keyboard and

barcode. Amongst the statements which one represent Barcode method and

Keyboard method and why. each of the data entry method through considering all the

factors that shape the efficient data entry method between keyboard and barcodes.

$3\mathrm{.}1\mathrm{.}1$ The entry method that appear on product labels. $(2)$

$3\mathrm{.}1\mathrm{.}2$ One of the goals is eliminate the possibility of human error. $(2)$

$3\mathrm{.}1\mathrm{.}3$ The entry method that inevitably reduce labour cost. $(2)$

$3\mathrm{.}1\mathrm{.}4$ The entry method that inexpensive to design and print $(2)$

$3\mathrm{.}1\mathrm{.}5$ The data method entry method that usage is extremely varied $(2)$