explain classification based on the sources.
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Answer:
Primary sources Edit
A primary source is a source cited for some new idea, creative thought, or data originating in that source, and not derived from another author or another source. Primary sources usually have some immediate connection or contact with the source of the new idea, thought, or data. For example, the primary source of some experimental data might be written by the scientist who performed the experiments. The primary source of a quotation might be written by someone who was present when the thing was said. The primary source of a historical theory is usually written by the historian who first conceived that theory. The primary source of information about a fictional universe is usually written by the author of that fictional universe.
Secondary sources Edit
A secondary source is any source cited for its second-hand information from a different work. Secondary sources are not the originators of new ideas, creative thoughts, or data; they merely act as a conduit for such information. For example, if an author compiles research data from several scientists into a table for comparison, she is a secondary source with respect to that data. If an author paraphrases a quotation in another source, she is a secondary source with respect to that quotation. If an author in a historiography summarizes a historical theory from the 1800s, she is a secondary source as to that historical theory. An encyclopedia about a fictional universe is a secondary source as to the works of fiction defining that fictional universe.
Some secondary sources, such as textbooks and treatises, are further described as tertiary sources. However, the tertiary source concept is not as significant and clear-cut as the others, and the category has less relevance to Wikipedia, except for the fact that Wikipedia is itself a tertiary source.
Answer:
Sources of information or evidence are often categorized as primary, secondary, or tertiary material. These classifications are based on the originality of the material and the proximity of the source or origin.
When you classify sources, you are recording information about your sources—for example, you could record: Bibliographical information about journal articles or other publications—you can import this data from reference management tools like EndNote or Zotero.