题目
题目

Homework:Ch 11 Homework

多项填空题

Part 1Currently a company that designs Web sites has five customers in its backlog. The time since the order​ arrived, processing​ time, and promised due dates are given in the following table. The customers are ready to be scheduled​ today, which is the start of day 190190. [table] | Copy to Clipboard | | + [/table] [table] Customer | Time Since Order Arrived​(days ago) | ProcessingTime​ (days) | Due Date​(days from​now) A | 88 | 1212 | 5050 B | 66 | 1010 | 6666 C | 33 | 2424 | 5858 D | 22 | 3232 | 100100 E | 1010 | 2020 | 2626 [/table]a. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average days past due.Part 2Using the FCFS​ (first come, first​ served) decision rule for sequencing the​ customers, the order​ is:[table] Sequence | 1 | 2 | 3 | 4 | 5 Customer | E Your answer is correct. You answered E. | A Your answer is correct. You answered A. | B Your answer is correct. You answered B. | C Your answer is correct. You answered C. | D Your answer is correct. You answered D. [/table]Part 3Using the EDD​ (earliest due​ date) decision rule for sequencing the​ customers, the order is​ (to resolve a​ tie, use the order in which the jobs were​ received):[table] Sequence | 1 | 2 | 3 | 4 | 5 Customer | E Your answer is correct. You answered E. | A Your answer is correct. You answered A. | C Your answer is correct. You answered C. | B Your answer is correct. You answered B. | D Your answer is correct. You answered D. [/table]Part 4The average flow time and average days past due for each option​ are: ​(Enter your responses rounded to one decimal​ place.)[table] Rule | Average Flow Time | Average Days Past Due EDD | 60.2 60.2 | 0.0 0.0 FCFS | 57.4 57.4 | 1.6 1.6 [/table]Part 5b. On the basis of average flow​ time, which rule gives the best​ schedule? [input] ▼  empty selection

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思路分析
To approach Part 5, we first recall what the metric 'average flow time' means: it is the average time from when a job arrives to when it completes, across all jobs. In Part 4, the computed results show two candidate rules with their respective average flow times: - EDD (earliest due date): Average Flow Time = 60.2 - FCFS (first-come, first-served): Average Flow Time =......Login to view full explanation

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