Cherry Jones owns a homeopathic medicine company called Faithhealers. She sells vitamins and other relatively nonperishable products for those who want choices regarding alternative medicine. Cherry is developing a new system that would require her staff to be retrained. Given the information in Figure 3.EX3, make a PERT diagram for her and identify the critical path. If Cherry could find a way to save time on the €œwrite use cases€ phase, would it help? Why or whynot?

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Description Task Must Follow Time (Weeks) Interview executives Interview staff in order fulfillment Design input prototype Design output prototype Write use cases Record staff reactions to prototypes Develop system Write up training manual Train staff working in order fulfillment one 6 None 2 A,C A, C 4 2 5 E, F B, G