LIMITACIONES Y MEJORAS DE LA METODOLOGÍA DEL VALOR GANADO EN LA GESTIÓN INTEGRADA DEL PLAZO Y COSTE DE PROYECTOS

Abstract

Earned Value Management (EVM) is a simple and elegant methodology for integrated management of project time and cost. EVM gives measures about the performance of the project, so that early correction actions could take place. During project run time, EVM uses past performance to build new forecasts about remaining costs and finishing times. Despite it is very easy to implement, the methodology has some important limitations: it does not include managerial flexibility and team learning during the project life-cycle; the role of project risk is missed, and its forecasts are very sensitive to the net structure. In this paper, we explain these limitations and we suggest some extensions of the methodology in order to overcome some of them. In particular, we focus on the need of developing new performance indexes which integrate project risk, costs and time: for instance, some actions taken to correct over-expenses could not be appropriated whenever the project risk is dramatically increased. Keywords: project cost management, time management, earned value management.