Case Study Questions and Activities:

$2\mathrm{.}1$ Infer how the investigations implemented by XYZ Manufacturing fit in with the phases of a

six$-$sigma project. $($Instruction: further research on the phases of six$-$sigma$)(10)$

$2\mathrm{.}2$ Interpret how XYZ Manufacturing can use the Poka$-$yoke approach for error$-$proofing the

different processes included in the investigations. $($Instruction: further research on the $6$

principles or methods of mistake$-$proofing for you to answer this question$)(12)$

$2\mathrm{.}3$ Continuous improvement involves a more incremental approach to improvement,

concentrating on encouraging many small step improvements. Demonstrate how XYZ

Manufacturing can apply the Deming cycle approach. $($Instruction: further research on the

phases of the Deming cycle approach$)(8)$

$2\mathrm{.}4$ The three investigative teams were tasked to investigate three functional areas

$($manufacturing environment, administration processes and financial aspect$)$ of XYZ

manufacturing, with an illustration of a cause$-$and$-$effect diagram reflect how each team

can identify many causes as possible for an effect or problem$/$s$.($Instruction: further

research on the fishbone diagram$)$