Uncertain Engineering Critical Path Solving Method Based on Interval Number theory

DOI

10.2991/meic-15.2015.323How to use a DOI?

Keywords

critical path; uncertain management; engineering time control; interval number; activity management

Abstract

Critical path management is an important way for controlling the schedule of an engineering project, it always difficult to describe by a precise manner for the uncertain characteristic. In this paper, the interval number is applied to describe the uncertain characteristic, and a preference indexes are introduced to solve the critical path on linear programming problem. Meanwhile, the control priorities of sub-path can be also analyzed by a sensitivity coefficient . The result shows that compared with traditional probability methods and other interval critical path studies, the proposed method can improve the precision of the project time control. From the example and the result analysis, traditional probability method can deal with the uncertain problem of the network, but it may optimistically estimate the project duration time, namely, the duration time is underestimating. But interval critical path solving method could give more accurate duration time and critical path, and the proposed method could give more exact result and the calculation procedure is simpler.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Li Li
AU  - Jianjun Wang
PY  - 2015/04
DA  - 2015/04
TI  - Uncertain Engineering Critical Path Solving Method Based on Interval Number theory
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 1409
EP  - 1412
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.323
DO  - 10.2991/meic-15.2015.323
ID  - Li2015/04
ER  -