Discuss the following sentence "Decision making is the heart of all managerial functions and roles" Question 2 (5 marks) Explain how information systems support decision making phases. Questions 3. (5 marks) What are the challenges posed by strategic information systems and how should they be addressed? Question 4: (5 marks) Explain How do Porter's competitive forces model help companies develop competitive strategies using information systems? Question 5: (5 marks) Explain how Information systems are supporting all managerial functions Question 6: (5 marks) Discuss how Information systems can support efficiency and effectiveness. Discuss the following sentence "Decision making is the heart of all managerial functions and roles" Question 2 (5 marks) Explain how information systems support decision making phases. Questions 3. (5 marks) What are the challenges posed by strategic information systems and how should they be addressed? Question 4: (5 marks) Explain How do Porter's competitive forces model help companies develop competitive strategies using information systems? Question 5: (5 marks) Explain how Information systems are supporting all managerial functions Question 6: (5 marks) Discuss how Information systems can support efficiency and effectiveness