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UI Slides (1) - Information Systems Using...

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Information Systems Using Information (Higher and Intermediate 2)
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Introduction Data and information Organisational Information Systems Information Management Software The implications of ICT Outcome 1 Content
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Introduction Information and knowledge are so important that society can be divided up into two groups. Information rich - you have access to: many TV and radio channels books, newspapers and journals computers and the World Wide Web. Information poor - tend to not have access to the Web and probably find it difficult to access relevant books and journals. If you are following this course you will probably be information rich. We are going to examine the nature and uses of information by looking at: 1. Differences between Data and Information 2. Organisational Information Systems 3. Information Management Software 4. Implications of Information and Communications Technology.
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Data and Information The Differences Between Data and Information Metadata Categorisation of Information Characteristics Which Affect the Quality of Inform
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Data and Information Data is raw unprocessed facts and figures that have no context or purposeful meaning. Information is processed data that has meaning and a context. Data 36.41 Binary patterns on a disc Information £36.41 – bill for DVDs Processed data – e.g. display on screen, icons, etc.
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Knowledge Knowledge is gained from Information . We gain knowledge from information and we use that information to make decisions. Explicit knowledge is rules or processes or decisions that can be recorded either on paper or in an information system. Tacit knowledge exists inside the minds of humans and is harder to record. It tends to be created from someone’s experiences, so again is a set of rules or experiences.
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Metadata Metadata can be thought of as data that describes data. Examples a data dictionary the card index system used by libraries before computerisation, where each card told you the author, title and where to find the book data about documents or files stored on the computer. The computer keeps a file on its hard disk where it records information about each and every file on the computer. This includes information such as when the file was created or modified; who created it; the size of the file; the file type it is. This master or directory file is an example of metadata.
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Categorisation of Information Information can be categorised under several headings that allow us to determine its overall usefulness. Main categories Source Nature Level Time Frequency Use Form Type.
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Source – Primary or Secondary Where statistical information is gathered, such as in surveys or polls, the survey data or polling data is the primary source and the conclusions reached from the survey or the results of the poll are secondary sources A secondary source of information is one that provides information from a source other than the original.
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