Draw the network diagram (use both frontward & backward pass) Determine the critical path - Determine the float for each activity Activity Activity Description Immediate Predecessors Estimated Duration A Excavate 2 weeks B Lay the foundation 4 weeks C Put up the rough wall B 10 weeks D Put up the roof C 6 weeks E Install the exterior plumbing 4 weeks F Put up the exterior siding E 5 weeks G Do the electrical work D 7 weeks H Put up the exterior painting E, G 9 weeks 1 Do the electrical work 7 weeks J Put up the wallboard F, 1 8 weeks K Install the flooring J 4 weeks L Do the interior painting J 5 weeks M Install the exterior fixture H 2 weeks N Install the interior Fixture KL 6 weeks