Business Strategy defines how the firm intends to compete in the markets or market segments it pursues. A firm can compete on low cost or through differentiation. Supply chains can contribute significantly to both sets of goals.
It is when a company uses separate companies as their supply chain so they are involved in supplying the material however they wouldn’t have a role in the end product.
An example of non-integration would be Reiss because it is a small investment, which means they have a certain amount they can spend and non-integration works with mainly that company to provide for and not a lot of others in one go.