33. The details in the table below show activities in an information system development project. Use it to answer the questions that follow. Activity Duration (weeks) Symbol Precedence Optimistic Most likely Pessimistic Hardware selection A 5 6 8 Software design B 3 4 5 Install hardware C A 2 3 3 Code and test software D B 3.5 4 5 File take-on E B 1 3 4 Write user manuals F - 8 10 15 User training G E, F 2 3 4 Install and test system H C, D 2 2 2.5 (a) Draw a network diagram to represent the activities. (12 mks) (b) Determine the critical path and the project duration. (c) Explain three reasons for aligning information systems plan to the organization plan. (2 mks) (6 mks) (10 mks) (10 mks) 34. (a) Describe five components of a Management Information System. (b) With aid of a diagram, describe the decision making cycle. 35. (a) Explain the following categories of systems in connection with management decision making, clearly distinguishing between the categories. (i) Transaction Processing Systems (ii) Management Information Systems (iii) Decision Support Systems (3 mks) (3 mks) (3 mks) (3 mks) (b) Explain how an expert system may be used in a business application. (8 mks) (iv) Executive Support Systems