“Each step in the manufacture of a product or the delivery of a service can be thought of as a link in a chain that adds value to the product or service. This concept of a how business fulfils its mission and objectives is known as the value chain” (Needles et al, 2007, p.836)
The concept of Value-Chain analysis is introduced by Michael Porter (1985), who divides activities of the firm into two categories: primary activities and support activities. Primary activities are necessary elements for producing the products and offering services, and support activities assist businesses to become successful in the marketplace.