Monitoring phase of project life cycle need to be very critical and comprehensive appraised. What is the most effective way to go during this phase?

It is recommended that this Comprehensive Project Life Cycle Model be considered for adoption as a standard for important projects. While many PM practitioners and authorities limit the scope of ‘project management’ to the traditional start-plan-execute-closeout phases, projects begin their existence before the traditional start phase and their products or results continue to exist and must be evaluated after the projects are closed out.