Midterm%20Study%20Notes

Midterm%20Study%20Notes - Midterm Study Notes (Ch. 1-6) BUS...

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Unformatted text preview: Midterm Study Notes (Ch. 1-6) BUS 237 Summer 2008 Steven Toy Chapter 1: I nformation Systems and You Information system (IS) : a group of components that interact to produce information The Five Components of an Information System Hardware Software Data Procedures People More difficult to change --------------------------------------------------------------------------------- Management information systems (MIS) : the development and use of information systems that help businesses achieve their goals and objectives Information technology (IT) : the methods, inventions, standards and products; raw technology that concerns only hardware, software and data components of IS model IT, by itself, does not help an organization achieve its goals and objectives; it must be embedded into an IS to become useful Moores Law : the number of transistors per square inch on an integrated chip doubles every 18 months Essentially, this means the speed of computer chips double every 18 months As a result, the price/performance ratio of computers (and other IT products) has dramatically declined over the years 1 Midterm Study Notes (Ch. 1-6) BUS 237 Summer 2008 Steven Toy Chapter 2: Business Processes, I nformation, and Decision Making Business process : a network of activities, resources, facilities, and information that interact to achieve some business function (e.g., inventory management, manufacturing, sales and support, etc. See Figure 2-1, p. 25) Components of a Business Process 1. Activities: transform resources and information of one type into resources and information of another type (e.g., quantity received and shipping invoice information into a payment) Can be manual, automated or both 2. Resources: Items of value Includes suppliers and customers 3. Facilities: structures used within a business process (e.g., inventories, databases, equipment, etc.) 4. Information data : recorded facts or figures Definitions of information : Knowledge derived from data (e.g., individual wages in a department data average wage in the department information) Data presented in a meaningful context (e.g. employees wage data employee makes half the average wage in the department information) Processed data (e.g. data that has been summed, ordered, averaged, grouped, compared, etc.) A difference that makes a difference 2 Midterm Study Notes (Ch. 1-6) BUS 237 Summer 2008 Steven Toy Characteristics of Good Information Accurate Timely Relevant To context To subject Just barely sufficient: We only want enough information to make decisions and no more Worth its cost: Benefits > Costs Automated system: an activity in a business process where the work formerly done by people following procedures is now done by computers following instructions in software Hardware Software Data Procedures People --------------------------------------------------Work moves from human side to...
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This note was uploaded on 07/10/2008 for the course BUS 237 taught by Professor Kamalmasri during the Spring '08 term at Simon Fraser.

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Midterm%20Study%20Notes - Midterm Study Notes (Ch. 1-6) BUS...

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