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Secondary data refers to data that is collected by someone other than the primary user. [1] Common sources of secondary data for social science include censuses, information collected by government departments, organizational records and data that was originally collected for other research purposes. [2]
This is a list of GIS data sources (including some geoportals) that provide information sets that can be used in geographic information systems (GIS) and spatial databases for purposes of geospatial analysis and cartographic mapping. This list categorizes the sources of interest.
Data are commonly used in scientific research, economics, and virtually every other form of human organizational activity. Examples of data sets include price indices (such as the consumer price index), unemployment rates, literacy rates, and census data. In this context, data represent the raw facts and figures from which useful information ...
Secondary sources may draw on primary sources and other secondary sources to create a general overview; or to make analytic or synthetic claims. [3] [4] Tertiary sources are publications such as encyclopedias or other compendia that sum up secondary and primary sources. For example, Wikipedia itself is a tertiary source.
So while a dictionary is an example of a tertiary source, an ancient dictionary is actually a primary source—for the meanings of words in the ancient world. There are no quaternary sources: Either the source is primary, or it describes, comments on, or analyzes primary sources (in which case, it is secondary), or it relies heavily or entirely ...
Examples of sources for these US aggregate data include the United States Census Bureau, Statistical Abstract of the United States, and Social Explorer. International Monetary Fund data, World DataBank, and Penn World Table are examples of transactional and international aggregate data sources.
Data quality; Source of the data; Process used to create the data; For example, a digital image may include metadata that describes the size of the image, its color depth, resolution, when it was created, the shutter speed, and other data. [16]
A tertiary source is an index or textual consolidation of already published primary and secondary sources [6] that does not provide additional interpretations or analysis of the sources. [ 7 ] [ 8 ] Some tertiary sources can be used as an aid to find key (seminal) sources, key terms, general common knowledge [ 9 ] and established mainstream ...