Spreadsheet Decision Modeling

Read an article and answer the following Questions using you own words:
Describe the objective of this case study according to your understanding (200 Words)
What is the importance of material selection in manufacturing companies (200 Words)
What is the Analytic Hierarchy Process (AHP) that can be used in decision making process in manufacturing companies (200 Words)
What are the important steps you suggest for the decision-maker in order to make a good decision (200 Words)
How this study is helpful for you in understanding the decision making process about material selection in manufacturing companies? (200 words)