Answer :
The value of what businesses provide to other businesses is captured in the final products at the end of the production chain. During the production chain the product goes through various steps to reach its end result. Each step in the chain adds more value to the product. Once it reaches the end of the chain the true test is the value it provides to business that ends up using the item. An example of this is a home being built. During each stage of the home building process the home is getting closer to its true test, when the owners move in. From the floor being poured to the walls going up, each step makes the house closer to becoming someones home.