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Chapter 3 Sources of knowledge : Libraries

Library Classification
     The two main library classification systems are the Dewey Decimal system and the Library of Congress system. Both are expandable tools for sorting books into categories, but they differ in how they categorize books and in the sorts of libraries that use them. They also differ in their basic organizational scheme.
  • Basics of the Library of Congress System

        The Library of Congress system has 21 broad categories, each represented by one letter of the alphabet. For example, books on philosophy, psychology and religion all are have codes starting with the letter B. Books on education start with the letter L. History of the Americas gets two letters: E and F. Many classes have subclasses identified by a second letter; for example, books on the history of education start with LA. Other classes begin with a single letter and then numbers (classes E and F, for example). Subsequent numbers further divide the categories.

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Chapter 2 Objective and Subjective

Definition of Objective and Subjective
    Objective is a statement that is completely unbiased. It is not touched by the speaker’s previous experiences or tastes. It is verifiable by looking up facts or performing mathematical calculations.


    Subjective  is a statement that has been colored by the character of the speaker or writer. It often has a basis in reality, but reflects the perspective through with the speaker views reality. It cannot be verified using concrete facts and figures.




Here are two terms I tend to use a lot as they are concepts most students should be familiar with.

Simply put subjective means based on personal feelings.

The cake is tasty or gross depending on your personal preference.

Objective means not based on your personal opinion. Instead this is based on your observations. 

Sources of information

Primary sources 

A primary source of information is one that provides data from an original source document.  This may be as simple as an invoice sent to a business or a cheque received.  It may be more complex, such as a set of sales figures for a range of goods for a tinned food manufacturer for one week, or it may be a set of sales figures over several weeks and several locations.  There are many examples of primary sources in many walks of life, but generally a primary source is defined as being where a piece of information appears for the first time. 

Secondary sources 

A secondary source of information is one that provides information from a source other than the original. Secondary sources are processed primary sources, second-hand versions.  Examples of secondary sources could be an accounts book detailing invoices received, a bank statement that shows details of cheques paid in and out.  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. 


Tertiary sources

Tertiary sources consist of information which is a distillation and collection of primary and secondary sources. 



Good and Poor information

Characteristics of good information

    Good information is that which is used and which creates value. Experience and research shows that good information has numerous qualities.
    Good information is relevant for its purpose, sufficiently accurate for its purpose, complete enough for the problem, reliable and targeted to the right person.  It is also communicated in time for its purpose, contains the right level of detail and is communicated by an appropriate channel, i.e. one that is understandable to the user.
   Further details of these characteristics related to organisational information for decision-making follows.
1) Accuracy
2)Completeness
3)Consistency
4) uniqueness 
5)Timeliness


 

Chapter 1:Data, Information, Knowledge, Wisdom

From Data to Wisdom
Brief Definitions
The content of the human mind can be classified into five categories:
  1. Data: symbols
  2. Information: data that are processed to be useful; provides answers to "who", "what", "where", and "when" questions
  3. Knowledge: application of data and information; answers "how" questions
  4. Understanding: appreciation of "why" 
  5. Wisdom: evaluated understanding. 

"Wisdom is not a product of schooling but of the lifelong attempt to acquire it."
Albert Einstein