What are the different types of decisions, and how does the decision-making process work? How do information systems support the activities of managers and management decision making?

a. List and describe the different levels of decision making and decision-making constituencies in organizations. Explain how their decision-making requirements differ. 

b. Distinguish between an unstructured, semistructured, and structured decision.

c. List and describe the stages in decision making.

d. Compare the descriptions of managerial behavior in the classical and behavioral models.

e. Identify the specific managerial roles that can be supported by information systems.