$1\mathrm{.}1$ Define the problem $(3$ marks$)$

$1\mathrm{.}2$ Measure the impact of the problem using the control limits $(26$ marks$)$

$1\mathrm{.}3$ Analyse the root cause using fishbone diagram $(21$ marks$)$

$1\mathrm{.}4$ Improve the process of using impact effort metrics $(11$ marks$)$

$1\mathrm{.}5$ Control: Maintain the positive results using $($TPM$)$