QUESTION NO$\mathrm{.}3(20$ Point$)$

Project Management is an important area within Operations, where every now and then, management will have certain tasks to complete within a stipulated time, in order to keep the operations running successfully. The below tools are some famous methods used in managing projects. Discuss each critically using the given techniques.

a$.$ Critical Path Method $($CPM$)$

b$.$ Program Evaluation & review Techniques.