The concepts of Earned Value Management Systems (EVMS) to measure performance are not new, but their applications are becoming ever more demanding and wide spread. ProjectAide is familiar with the various techniques for earned value analysis and cost schedule control system criteria employed on many projects today. We believe that through our relationships with suppliers of EVMS training and our own background in the application of these processes and principles we can assist our clients in discovering the real power in EVMS to the project. The secret to EVMS is to ensure that the schedule and the cost data are linked and stay linked.