You have been hired by a cell phone manufacturing company to procure TFT screens for multiple types of phones to be manufactured at a facility in Yankton, South Dakota.

a. There are several models that could be appropriate for this problem. Give an example of each of the following model types you may consider for this purchase.

i. Schematic

ii. Analogous

iii. Physical

iv. Mathematical

b. Give an example problem associated with this purchase that you would be solving.

c. What kind of model would you create to solve this problem? Describe the rationale behind this model selection.