Final answer:
The guideline for the design of manufacturing is to choose the production technology with the lowest total cost and optimize design while minimizing costs.
Step-by-step explanation:
The guideline for the design of manufacturing is to choose the production technology that has the lowest total cost. This means selecting the technology that allows for a shift towards more efficient machines and less labor. The firm should consider the cost of materials, but the goal is to achieve optimal design while minimizing costs.