Why supplier selection is a typical multi-criteria decision-making process involving subjectivity and vagueness?

In the Search Bar of EBSCO find the following article:

Title: A Rough Multi-Criteria Decision-Making Approach for Sustainable Supplier Selection under Vague Environment: A Case Study.

Author: Huiyun Lu , Shaojun Jiang , Wenyan Song, Xinguo Ming

Date: 26 July 2018

 

Assignment Questions: (Marks 15)

Read the above case study and answer the following Questions:    

 

Question 1: Explain the decision-making approach discussed in this case study (250-300 words) (3-Marks).

 

Question 2: Why supplier selection is a typical multi-criteria decision-making process involving subjectivity and vagueness? (250-300 words) (3-Marks).

 

Question 3: Discuss the Sustainable supplier selection that is required for manufacturing companies. (250-300 words) (3-Marks).

 

Question 4: Why Supplier selection decisions are important for most of the manufacturing firms? (250-300 words) (3-Marks).

 

Question 5: What is your opinion about this study and how it is connected to course and beneficial for you? (250-300 words) (3-Marks).