67. (a) Define the following terms as used in database systems. (i) Data warehouse (ii) Checkpoint...

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67. (a) Define the following terms as used in database systems. (i) Data warehouse (ii) Checkpoint (b) Define the following terms in the context of management. (i) Planning (ii) Control (c) Explain three features of a real-time transaction processing system. (d) Explain the role of Office Automation Systems in an enterprise. 68. (a) Describe three characteristics of information at the operational level of management in a firm. (b) Explain two characteristics of autocratic leadership. (c) Distinguish the term effectiveness from the term efficiency in regard to information systems. (d) Explain the term cost-benefit analysis as used in project investment. 67. (a) Define the following terms as used in database systems. (i) Data warehouse (ii) Checkpoint (b) Define the following terms in the context of management. (i) Planning (ii) Control (c) Explain three features of a real-time transaction processing system. (d) Explain the role of Office Automation Systems in an enterprise. 68. (a) Describe three characteristics of information at the operational level of management in a firm. (b) Explain two characteristics of autocratic leadership. (c) Distinguish the term effectiveness from the term efficiency in regard to information systems. (d) Explain the term cost-benefit analysis as used in project investment.