Chapter 20 Discussion Required posting Two posts are required to receive full credit for a discussion. First of all you will need to respond to the scenario that is given. You will need to give a complete answer, at least a paragraph, that shows that you have read the scenario and have put some thought into your response. The second required post needs to be at least one reply to a fellow students post. In many exercises and problems in the chapter, all materials were introduced at the beginning of the production process. Give examples of materials that would be added at the start of a production process. Now give examples of materials that would not be added at the beginning of the manufacturing process, maybe added throughout the process or even at the end of the process. Give at least two of each