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|Title:||Effects of erroneous estimation of activity durations on scheduling and dispatching a single project|
|Keywords:||Project Management and Simulation|
|Citation:||Yang, K.-K. (1996). Effects of erroneous estimation of activity durations on scheduling and dispatching a single project. Decision Sciences 27 (2) : 255-290. ScholarBank@NUS Repository.|
|Abstract:||This research examines the effects of erroneous estimation of activity durations on two different approaches for executing a resource-constrained project The two approaches are scheduling and dispatching. This research is conducted in two phases. Phase one examines the performance of scheduling and dispatching rules in a variety of project environments. These project environments are categorized by three different factors, namely, the order strength of the precedence relationship, the level of resource availability and the size of errors in estimating the activity durations. The results show that scheduling generally produces a shorter project completion time than the heuristic dispatching rules. The results also indicate that project environment affects only the relative performance differences of the scheduling and dispatching rules but not their ranking. Phase two examines the effect of rescheduling. The results show that frequent rescheduling improves the project completion time, while the timing of rescheduling has little impact on the improvement in the project completion time. The results also identify the project environments where rescheduling is beneficial.|
|Source Title:||Decision Sciences|
|Appears in Collections:||Staff Publications|
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