Results might be measured against goals based on the success factor or methods of achieving those goals. Goals should be measured periodically throughout the project implementation phase depending on the nature of the project (Reilly, 1996).
Feasibility should be measured throughout the life cycle of a project. The scope and complexity of an apparently feasible project can change after the initial problems and opportunities are fully analyzed or after the system has been designed. A project that is feasible at one point in time may become infeasible at a later point