Project Scheduling 1. Draw the precedence network diagram for the project that activities and duration are given below in table 1: Id Activity Duration (days) Predecessor Requirement specification B Specification module A Specification module B 15 A D Specification modulec 25 A E Specification module 15 A F Review specification B,C,D,E Design module A 7 F H Design module B F Design module F Design module D 4 F K Code test module A 30 L Code test module B H M Code test module N Code test module D 25 0 System Integration 6 K.L.MN 15 2. Using your precedence network diagram in answer 1, cakulate the earliest completion date date for the project using forward and bacward pass technique. 3. Based on your answer in 2 identify the critical path (you may find based on the activity float and span for each activities for the project by colouring the path with bold red line. Note: You may show your answer for all three questions above by using just ONE diagram only