QUESTION $4(25$ Marks$)\backslash$

There are fundamental differences between the strategies that are utilised for manufacturing and those utilised for services. The major reason for the difference is the level of customer contact that is present in the services industry but not necessarily so in the manufacturing sector. The reason for the difference is that the manufacturing sector can create inventory, while the service sector is unable to do so$.$ Due to the fact that the product is consumed somewhere else, there are fundamentally $3$ strategies that can be applied to guarantee the availability of the products.

You are required to describe and discuss each of these three strategies in detail.