Company Z$,$ is a supplier to the country's largest automaker. Company Z supplies Sheet Metal parts, Injection Moulded parts, Mass Produced Aluminium cast and machined parts to the automaker. The Organisation structure of the Production Dept. at Company $Z$ is shown in Figure $1.$

Figure $1$: Organisation structure

You have been appointed as a Consultant for Company Z to derive a Maintenance Master Plan for the company.

a$)$ Decide on the appropriate Maintenance Management Organisation $($Centralized or Decentralized$).$

$(5$ marks$)$

b$)$ Modify the Organisation Structure to add the Maintenance Function.

$(10$ marks$)$