1 Question 3: Toshij solutions is a software company located in singapore. One of the project that is being planned has the following activities: Table 1 Project Activities Task Activity Predecessor Duration Identifier Activity (days) A Establish project B Establish customer requirements 2 Product software specification A 1 documents D Write test plans B 2 E Write code CD F Developer testing DE G Implementation EE 2 H Improvement G 1 I System testing H 2 J Write manuals I 2 1 1 a) For each of the activities, design the Early Start (ES), Late Start (LS), Early Finish (EF) and Late Finish (LF) Time, as well as Total Float (FL) days. Determine the critical path(s). (30 marks) b) Take a look at the network diagram in Figure 1. State what is wrong with the diagram and where possible, redraw them correctly. (20 marks) N G B 6 F 3 5 Figure 1 Network Diagram