The intergrated control of project quality,cost and schedule based on the earned value theory

Nowadays our building enterprises still control quality,schedule and cost separately.Earned value method is an effective way to control schedule and cost integratively and used more widely in foreign countries.In order to realize theintergration of project quality by earned value theory,on the basis of quality earned value conception introduced by pre-researcher,the article proposes calculating and measuring the quality earned value,and uses an example to illustrate it,which can offer an practicable way to control quality;schedule and cost integratively.