Drawing Project Plans for Project Management——Probing into the Method of Drawing Two-code-name-arrow Network Plan

With the best wide use of network plan in project plan,This article advances the way of drawing network plan.By means of principles,procudures and notable things of making network plan,the paper aims to describe how to draw Tow-code-name-arrow Network Plan rapidly and accurately so as to make the network plan guide the distribution of project management time more effectively.