Please solve the assignment Article name Analysis and design of systems

A project has been defined to contain the following list of activities along with their required times for completion. Activity No. Activity Time Immediate Predecessors (weeks) (Dependencies) 1 A Collect requirements 5 2 B Analyze processes 4 A 3 C Analyze data 4 B 4 D Design processes 8 B 5 E Design data 5 6 F Design screens 4 CD 7 G Design reports 6 DE 8 H Program 7 F,G 9 I Test and Documents 9 G 10 J Install 4 WIN HI a. Construct a Gantt chart for the project defined in Problem b. Draw a Network diagram for the activities. c. Calculate the earliest expected completion time. d. Show the critical path. e. What would happen if activity F were revised to take 6 weeks instead of 4 weeks