We conducted research on the evaluation of the network schedule of recent projects in which critical paths are changing more frequently due to irregular work delay. We developed a method for expressing the size of the entire float dispersed throughout the schedule network as a region on the vector space (Float solution space). We also proposed a calculation method to measure its size. However, this calculation method has a problem of the calculation amount. Therefore, in this study, we proposed a method to deal with this problem of the computational complexity. Specifically, instead of calculating the absolute amount of the float solution space described above, we proposed an index that holds the magnitude relation of the absolute amount. However, the accuracy of this indicator is still only evaluated easily. In this research, in order to clarify the accuracy of the “single unit volume index" of its most promising candidate, the followings were done. First of all, we implemented a system for index calculation. Next, as an application example, we conducted an accuracy evaluation experiment using a schedule network of 20 patterns from 3 to 15 dimensions. As a result, good results were obtained from the experimental results based on this application example. In other words, if we restrict to the magnitude relation, it was found that there is no problem even if the size of the region on the vector space is evaluated by the single volume index. However, due to the nature of this indicator, there is a possibility that the deviation from the absolute evaluation becomes larger as the dimension becomes higher. Therefore, further examination is necessary in the future.
雑誌名
宮崎大學工學部紀要
巻
48
ページ
245 - 249
発行年
2019-07
出版者
宮崎大学工学部
Miyazaki University
Faculty of Engineering, University of Miyazaki
リポジトリのご案内
スケジュール・ネットワーク全体に分散する余裕の包括的評価に関する研究
本文
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