CASE : PRIORITY RULES AT TRYTECH LIMITED Brillian Carkenea , managing partner at a Trytech consulting firm, has requested your expert advice in devising the best schedule for the following consulting projects, starting on July 2. Description of Consultation Call Received Due Date (close of business) Task Length (Days) Company Date Time I 8 Mitville July 1 8:00 AM July 10 II 4 Pointech July 1 9:00 AM July 8 III 2 Letwork July 1 10:00 AM July 9 IV 5 Chem Services July 1 11:00 AM July 15 V 1 Zap Research July 1 1:00 PM July 7 VI 6 Select Pro July 1 2:00 PM July 14 VII 3 Opher & Sons July 1 3:00 PM July 6 VIII 7 Azolph Group July 1 4:00 PM July 12 The consulting firm charges a flat rate of $5,000 per day (e.g. If the length of a consultancy = 9 days, the fee charged to that company = $45,000 ($5,000 x 9). All eight firms impose fines for lateness. Mitville charges a $375-per-day fine for each day that the completion of the consulting work is past the due date; Pointech charges a fine of $400-per-day for each day late; Letwork charges a fine of $300-per-day for each day late; Chem Services charges a fine of $325-per-day for each day late; Zap Research charges a fine of $450-per-day for each day late; Select Pro MATH 0203 – QUANTITATIVE METHODS II 3 charges a fine of $350-per-day for each day late; Opher & Sons charges a fine of $425-per-day for each day late and Azolph Group charges a fine of $275-per-day for each day late. 1. Prepare alternative schedules based on the following priority rules: SOT, FCFS, EDD, STR, CR and another rule—Longest Processing Time (LPT), which orders jobs according to longest assigned first, second-longest assigned second, and so on. Consider lateness as being equivalent to tardiness, therefore every instance of early completion, i.e. Flow Time < Due Date = 0.
CASE : PRIORITY RULES AT TRYTECH LIMITED
Brillian Carkenea , managing partner at a Trytech consulting firm, has requested your expert
advice in devising the best
Description of Consultation Call Received Due Date
(close of business)
Task Length
(Days)
Company Date Time
I 8 Mitville July 1 8:00 AM July 10
II 4 Pointech July 1 9:00 AM July 8
III 2 Letwork July 1 10:00 AM July 9
IV 5 Chem Services July 1 11:00 AM July 15
V 1 Zap Research July 1 1:00 PM July 7
VI 6 Select Pro July 1 2:00 PM July 14
VII 3 Opher & Sons July 1 3:00 PM July 6
VIII 7 Azolph Group July 1 4:00 PM July 12
The consulting firm charges a flat rate of $5,000 per day (e.g. If the length of a consultancy = 9
days, the fee charged to that company = $45,000 ($5,000 x 9). All eight firms impose fines for
lateness. Mitville charges a $375-per-day fine for each day that the completion of the consulting
work is past the due date; Pointech charges a fine of $400-per-day for each day late; Letwork
charges a fine of $300-per-day for each day late; Chem Services charges a fine of $325-per-day
for each day late; Zap Research charges a fine of $450-per-day for each day late; Select Pro
MATH 0203 – QUANTITATIVE METHODS II 3
charges a fine of $350-per-day for each day late; Opher & Sons charges a fine of $425-per-day
for each day late and Azolph Group charges a fine of $275-per-day for each day late.
1. Prepare alternative schedules based on the following priority rules: SOT, FCFS, EDD,
STR, CR and another rule—Longest Processing Time (LPT), which orders jobs
according to longest assigned first, second-longest assigned second, and so on. Consider
lateness as being equivalent to tardiness, therefore every instance of early completion, i.e.
Flow Time < Due Date = 0.
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