The total productive maintenance $($TPM$)$ concept

Question $5$Select one or more:

a$.$

is an approach to managing the production team requiring top$-$down commitment of the organisational heirarchy.

b$.$

is a life$-$cycle approach to planning preventative maintenance of manufacturing systems

c$.$

is maximised by increasing the availability, performance rate, and quality rate of the system

d$.$

is a concept which originated in the USA in the $1990$s