INF/336 INF336 INF 336 WEEK 3 ASSIGNMENT NEED DEFINITION - LATEST  D O W N LOA D H E R E INF/336 INF336 INF 336 Week 3 Assignment Need Definition - LATEST Need Definition. From the end of Chapter 6, complete the following questions out of the section titled Questions for Review and Discussion. Each question should be thoroughly answered in a minimum of 150 words, using support from the text and examples when appropriate. a. Why is it preferable to separate need identification and defining commercial equivalents into two separate stages? b. Why is early supply/supplier important? c. What are the disadvantages of specifying by performance? What are the advantages? d. How does a supply professional know that a certain requirement is strategic?