The Practical Method of Drawing a Dummy Activity
虚工序的实用画法

This article deals with the practical method instead of the optimal method of drawing a dummy activity.First,the article illustrated the simplest programmed drawing method of a dummy activity.Second,it discussed the practical drawing method,which had not been mentioned worldwide yet,of a dummy activity when adjusting the network chart.Furthermore,it put forward the idea of "the most,the first principle",and the "redundency principle",which,in most cases,are not only practical but also optimal.