Production function, operation management, supply chain management, $4$ function of

organization, Efficiency and effectiveness, productivity, productivity ratio, productivity ratio

problems, improving productivity, life cycle, $3$ r $\text{'}$s in waste management, planning, sourcing,

making, delivery, and returning, $10$ strategic operation management decision, goods and services,

$4$ economic decision makers, goods and service continuum, triple bottom line, $3$ P$\text{'}$s in triple

bottom line, core competency,