Sensitivity Analysis on Single Activity to Network Float in CPM Network Planning

In CPM network planning, one activity consumes float may affect other activities’ floats, so that making the gross of network’ floats change. The objective of sensitivity analysis on single activity to network floats is to measure the effect. Aiming at the matter, firstly, conception of eigenvalue parameter and method of computing the parameter are given; secondly, sensitivity of single activity to network total float, network safe float, network free float and network node float is analyzed by using the parameter; thirdly, functions of relation between quantity consumed by single activity and degree of network floats affected by the activity are designed, and correctness of the functions are proven; and finally, the feasibility is validated though example.