MISnotes-1 - MIS235 05:34 MISchapter1...

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MIS 235 05:34 MIS chapter 1 Five components of an Information System Hardware-computer, storage disk, keyboard, monitor Software-Word Data-words, sentences and paragraphs Procedures-methods you use to start the program, enter the data, print it People-myself Management Information Systems deals with Development and use Information systems Business goals and objectives Information Technology (IT) refers to methods, inventions, standards and products---the  raw products and concerns only the hardware, software, and data components of an  information system. While Information System (IS) is a system of hardware, software,  data, procedures and people that produce the information. Moore’s Law—cofounder of Intel Corporation “The number of transistors per square inch on an integrated chip doubles every 18  months.”
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MIS 235 05:34 Business process Network of activities, resources, facilities, and information that interact to achieve some  business function A business process is a system, sometimes referred to as business systems Inventory management processes Manufacturing processes Sales and support processes Consists of Activities-transform resources and information of one type into resources and  information of another type Manual or automated Resources-items of value Case of milk, cash Facilities-structures used within the business process Inventories, databases, pieces of equipment Information-knowledge derived from data Data presented in a meaningful context Processed data An individuals earning=data, average earnings=information Information Good Characteristics of Information Accurate-based on correct, complete data and it has been processed correctly as  expected Timely-produced in time for its intended use
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MIS 235 05:34 Measured against a calendar or against events Relevant-both to context and subject Just Barely Sufficient-enough for the purpose it is generated for but not to much Worth its Cost-appropriate relationship must exist between the cost of the information  and its value The Business Process generates information by bringing together important items of  data in a given context It also generates information at an even higher level Eventually the information will be useful for management and strategy decisions Information systems are used by activities in Business Processes During systems development, the systems designers determine the relationship of  activities to information systems An Information System to Support Counter Sales Automated system, because cashier job is a low-skill-level position An Information System to Support Payment Mostly manual system Processing the exceptions is complicated, too expensive and not as effective
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MISnotes-1 - MIS235 05:34 MISchapter1...

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