Q5. (20 pts.) The optical disk project team has started gathering the information necessary to develop the project network predecessor activities and activity times in weeks. The results of their meeting are found in the following table. 1. Draw a project network (AON) given the information below. 2. Complete the forward and backward pass, and identify the critical path. 3. How long will this project take? 4. Calculate the free slack and total slack for all noncritical activities. 5. Construct time schedule of the project (Gantt Chart). Use the legend below in your project network representation. Legend ESID EF SL ese LS OUR LF Activity Duration Predecessor 1 2 6 3 5 5 10 3 2 5 Description Define scope Define customer problems Define data records and relationships Mass storage requirements Consultant needs analysis Prepare installation network Estimate costs and budget Design section "point" system Write request proposal Compile vendor list Prepare mgmt control system Prepare comparison report Compare system "philosophies" Compare total installation Compare cost of support Compare customer satisfaction level Assign philosophies points Assign installation cost Assign support cost Assign customer satisfaction points Select best system Order system 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 None 1 1 2,3 2,3 4,5 4,5 4,5 4,5 4,5 6,7 9, 10 8,12 8,12 8,12 8,12 13 14 15 16 11, 17, 18, 19, 20 21 5 10 1 1 1 1 1 1