The value chain model comprises primary activities $($Inbound Logistics, Operations, Outbound Logistics, Marketing, and Sales, Service$)$ and support activities $($Human Resource Management, Technology Development, and sourcing$).$ All these contribute to the creation of value and ambitious advantage.$$

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$1.$The primary activities within the value chain model are Inbound Logistics, Operations, Outbound Logistics, Marketing, Sales, and Service. Primary activities are directly involved in the creation and delivery of a product or service. They are the key processes through which a firm converts the inputs into outputs, promotes,$$sells products, and provides after$-$sales support.

$2.$The support activities,$$Human Resource Management, Technology Development, and Procurement, and how they assist the primary activities. Support activities are not directly involved in the production process but provide essential support and infrastructure to ensure that primary activities can be carried out effectively and efficiently.

$3.$The primary activity adds value to the product or service, from sourcing raw materials to providing customer service post$-$purchase.$$Each primary activity contributes to the overall value of the product, from ensuring high$-$quality inputs and efficient production processes to delivering the product and maintaining customer satisfaction.

$4.$The support activities contribute to the firm's overall efficiency and effectiveness, such as through strategic planning, employee development, and innovation.$$Support activities enhance the performance of primary activities by ensuring the organization has the right resources, knowledge, and technologies to compete in the market.

$5.$ The linkages between primary and support activities and how they collectively contribute to competitive advantage and customer value. The interaction between primary and support activities creates a collaboration that can lead to a sustainable competitive advantage by optimizing each activity to deliver maximum value.

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