What is the difference between projects managed by PERT and those managed by CPM? () CPM is for managing higher budget projects like nuclear power plants, while PERT is for managing less costly projects (O PERT is for managing events (such as the Olympic Games) while CPM is for putting projects involving physical items (like iPhones) and software writing/installation (like installing Oracle) () CPMis for longer term projects while PERT is for projects lasting up to 2 years at most (O PERT is for managing projects involving many unknowns like those in R&D, while CPM is for managing projects that are more familiar (O PERT is for managing projects involving many different skills and many times of equipment while CPM is for projects like writing software where there is essentially only 1 type of equipment (the computer) and one type of skill (programming)