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Management information systems |
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a business function that plans for, develops, implements, IT hardware, software, and the portfolio of applications that people use to support the foals of an organization |
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Customer service, finance, sales and marketing, IT ops, operations management, HR, Security |
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Reduce Costs/Improve productivity, Improve customer satisfaction/loyalty, create competitive advantage, streamline supply chain, global expansion |
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The Five Forces Model (porter) |
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threats of new entrants, bargaining power of suppliers, bargaining power of buyers, threat of substitute products or services, these are all Rivalry among competitors |
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The three generic strategies |
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1. cost leadership 2. differentiation 3. focused strategy |
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Include pimary activities that directly relate to the businesses profits which is raw materials and the process through manufacturing and selling.
Secondary value activities are like HR, IT department, Firm infrastructure |
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includes hardware, software, and telecommunications |
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Central Processing unit CPU |
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the actual hardware that interprets and executes the program (software) instructions and coordinates how all the other hardware devices work together |
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interprets software instructions and literally tells the other hardware devices what to do, based on the software instructions |
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the computers main memory, which consists of the RAM, cache , and the read-only memory (ROM) |
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Random Access Memory (RAM) |
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the computers primary working memory, in which program instructions and data are stored so that they can be accessed directly by the CPU via the processors high-speed external data bus |
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consists of equipment designed to store large volumes of data for long-term storage |
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a secondary storage medium that uses magnetic techniques to store and retrieve data on disks or tapes coated with magnetically sensitive materials |
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an older secondary storage medium that uses a strip of this plastic costed with a magnetically sensitive recording medium |
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a secondary storage medium that uses several rigid disks coated with a magnetically sensitive material and housed together with the recording heads in a hermetically sealed mechanism |
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CD ROM CR RW DVD DVD ROM DVD RW |
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a network in which one or more computers are servers and provide service to the other computers which are called clients |
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equipment used to capture information and commands
ex. keyboard, mouse, joystick |
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equipment use to see, hear, or otherwise accept the results of informations processing requests
ex. printers, LCD |
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equipment used to send information and receive it from on location to another
ex. cables, wireless, satellite |
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controls how the various technology tools work together along with the application software.
ex. utility software which is like disk image, spyware, uninstaller |
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a set of rules that ever computer follows to transfer information |
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Accuracy, Completeness, consistency, uniqueness, timeliness |
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missing information, inaccurate information, duplicates
sources: online users, different ways of entering data, call centers use abbreviations
Business effects: cant track customers, can identify customers, |
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Data Base Management System |
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software that allows users and applications to interact with a database |
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a person, place, thing, transaction, or event, about which information is stored |
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a collection of similar entities |
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characteristics or properties of an entity class
the columns or rows |
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a field that uniquely identifies a given entity in a table |
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a primary key of one table that appears an attribute in another table and acts to provide a logical relationship among the two tables |
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Relational Database Advantages |
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increased flexibility, scalability and performance, reduces redundancy, and provides a higher quality of information |
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enable the transmission of data over public or private networks |
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a communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards, or protocols, so that they can work together
-Local Area Network LAN -Metro Area Network MAN -Wide Area Network WAN |
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a standard that specifies the format of data as well as the rules to be followed during transmission |
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a means of linking computers using infrared or radio signals |
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an omnidirectional wireless technology that produces limited-rang voice and data transmission over the unlicensed 2.4-GHz frequency band, allowing connection with a wide variety of fixed and portable devices that normally would have to be cabled together |
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Radio Frequency Identification RFID |
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use active or passive tags in the form of chips or smart labels that can store unique identifiers and relate this information to electronic readers |
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a standardized set of activities that accomplishes a specific task, such as processing a customers order |
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results in a product or service that is received by an organizations external customer |
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invisible to the external customer but essential to the effective management of the business |
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Continuous Process Improvement model |
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attempts to understanding measure the current process, and make performance improvements accordingly |
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Business process reengineering BPR |
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Analysis and redesign of workflow within and between enterprises |
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logical collection of information gathered from many different operational databases that supports business analysis activities and decision making tasks |
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ectraction, transformation, and loading (ETL) |
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a pricless that extracts information from internal and external databases, transforms the information using a common set of enterprise definitions, and loads the informatin into a data warehouse |
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contains a subset of data warehouse information |
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a particular attribute of information |
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common term for the representation of multidimensional information |
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the process of analyzing data to extract information not offered by the raw data alone
three tyoes: -cluster analysis -associations detection -statistical analysis |
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use a variety of techniques to find patterns and relationships in large volumes of information and infer rules from them that predict future behavior and guide decision making |
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Systems Development Life Cycle |
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a structured step by step approach for developing information systems
7Phases: - Plan - Analysis - Design - Develop - Test - Implement - Maintain |
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seek to represent what information is involved, where it comes from, what process it plays a role in, where it is stored., and who receives the output |
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