27. (a) Define the term, information systems planning. (b) State four benefits of I. S. planning. (c) Describe the information systems planning process. (d) Explain the term, information system project management. (e) Differentiate between [business] automation and [business] reengineering. 28. (a) Use the data in the table below to draw a network diagram. Activity A Preceding activity Activity duration in weeks 16 B 14 - C A 8 D A 5 E B 4 F B 6 G C 10 H D, E 10 (b) Determine the critical path and the project duration. (c) Explain how the Government of Kenya is promoting integration of ICT in nation building.