Performance management can be regarded as a $\_\_\_\_\_\_\_\_($a$)\_\_\_\_\_\_\_\_\_\_\_$that involves the planning, managing, reviewing, rewarding and $\_\_\_\_\_($b$)\_\_\_\_\_\_\_\_$of individual and group performance. $(2)$

$19.$ In a paragraph discuss the role of procurement $($purchasing$)$ in the supply chain. $(2)$

$20.$ One of the primary objectives of a world$-$class procurement organisation is to support organisational goals and objectives $($objective $4).$ The procurement department must create procurement strategies that support organisational strategies. Name four $(4)$ effective procurement strategies. $(4)$

$21.$ Describe the role of logistics in supply chain management