19+Time_Cost_Tradeoff

19+Time_Cost_Tradeoff - TimeCostTradeoff TimeCostTradeoff...

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Time Cost Tradeoff Time Cost Tradeoff
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Activity-On-Arc Activity-On-Arc N  : the event (node) set representing the numbers  of the node  A  : the activity set (arc set) represented by a  collection of pairs of nodes enclosed in  parentheses and separated by a comma
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Example Example N = {1, 2, …. . , 7} and A ={(1,2), (1,3), (2,3), (1,4),  (2,5), (3,5), (3,6), (4,6), (5,7), (6,7)}. Note that activity  (2,3) is a "dummy" activity. It merely helps represent  the precedence relationships. It takes 0 time units and  consumes no resources 1 2 3 4 5 6 7
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Notation Notation d ij c  = shortest achievable (crash) duration for activity (i , j). d ij n  = normal duration for activity (i , j). NC ij  = direct cost of activity (i, j) if performed at normal            duration. CC ij  = direct cost of activity (i, j) if performed at crash            duration. c ij  = additional direct cost of crashing activity (i, j) by one         time unit. Note: CC ij  = NC ij  + c ij  (d ij n  - d ij c  ) d ij  = a decision variable, representing the duration of activity         (i, j)  With each activity (i , j)   A
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Notation Notation With each event i   N of the project 
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19+Time_Cost_Tradeoff - TimeCostTradeoff TimeCostTradeoff...

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