Define quality according to the following three perspectives:

$2\mathrm{.}3\mathrm{.}1$ User$-$based

$(2)$

$2\mathrm{.}3\mathrm{.}2$ Manufacturing$-$based

$(2)$

$2\mathrm{.}3\mathrm{.}3$ Product$-$based

$(2)$