Project Planning and Control with PERT & CPM

activity 1-2 activity 2-3 activity duration activity i-j bar chart beta distribution breakdown structure completion of activity computed cost slope CPM network critical activities critical path Critical Path Method determine direct cost curve dummies earliest event earliest expected end event equal event 50 event column event oriented event slack event under consideration example existing machine forward pass free float frequency distribution head event Hence immediate successor independent float indirect initial event last event latest allowable occurrence latest occurrence milestone chart network diagram network of Fig network shown node normal distribution normal duration numbering the events obtained operations PERT network planning predecessor event probability distribution project consists project duration represented sequence shown in Fig sor event stage standard deviation starting step successor activity successor events T₁ Table tail event tion total float updating value i.e. variance various activities zero