If a project has to be successful, it is a must that all the resources involved in the project must be working in an effective manner. The degree of effectiveness is of utmost importance and therefore project scheduling softwares rely on the effectiveness rate based scheduling. In case a particular type of resources is not being useful in a particular project schedule, it can make adjustments to the schedule. The resources would be moved around so that they work in the optimal manner. This is done in such a manner that none of the projects has to undergo any drastic changes yet everything is done for the best of everyone.