what are the classifications of scources
Answers
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.
Answer:
Although there are several ways to classify sources, one of the most useful is by their primary or secondary nature, a distinction deriving from the field of Historiography. Although there is some variability in the use of these terms outside of Wikipedia, we focus on one particular aspect of the distinction useful for editors:
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.
Primary and secondary are relative terms Edit
Any source can be either a primary or secondary source, depending on how it is used. 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. However, she might also make original conclusions about that data. The source would be primary with respect to those new conclusions. If an author paraphrases a quotation in another source, she is a secondary source with respect to that quotation. However, if she draws novel implications about that quotation, or synthesizes that quotation with other quotations, the work would be a primary source with respect to those new conclusions. If an author in a historiography summarizes a historical theory from the 1800s, she is a secondary source as to that historical theory. However, if she provides novel insights linking that historical theory with 1800s culture, the work is a primary source as to those original conclusions. An encyclopedia about a fictional universe is a secondary source as to the works of fiction defining that fictional universe. However, if the encyclopedia "fills in gaps" or makes novel generalizations, the encyclopedia is a primary source as to the author's unique contribution to the field.