In metadata a classification scheme is a hierarchical arrangement of kinds of things (classes) or groups of kinds of things. Typically it is accompanied by descriptive information of the classes or groups. A classification scheme is intended to be used for an arrangement or division of individual objects into the classes or groups. The classes or groups are based on characteristics which the objects (members) have in common. In linguistics, the subordinate concept is called a hyponym of its superordinate. Typically a hyponym is 'a kind of' its superordinate (Keith Allan, Natural language Semantics).
The ISO/IEC 11179 metadata registry standard uses classification schemes as a way to classify administered items, such as data elements, in a metadata registry.
Some quality criteria for classification schemes are:
- Whether different kinds are grouped together. In other words whether it is a grouping system or a pure classification system. In case of grouping, a subset (subgroup) does not have (inherit) all the characteristics of the superset, which makes that the knowledge and requirements about the superset are not applicable for the members of the subset.
- Whether the classes have overlaps.
- Whether subordinates (may) have multiple superordinates. Some classification schemes allow that a kind of thing has more than one superordinate others don't. Multiple supertypes for one subtype implies that the subordinate has the combined characteristics of all its superordinates. This is called multiple inheritance (of characteristics from multiple superordinates to their subordinates).
- Whether the criteria for belonging to a class or group are well defined.
- Whether the kinds of relations between the concepts are made explicit and well defined.
- Whether subtype-supertype relations are distinguished from composition relations (part-whole relations) and from object-role relations.
Other articles related to "classification scheme, classification schemes, scheme, classifications, classification":
... The following are examples of different kinds of classification schemes ... One example of a classification scheme for data elements is a representation term ...
... For arrangement of reading material the Dewey Decimal Classification scheme is followed in the library ... The 19th edition of this scheme is being used at present along with AACR2 and the 15th edition of the Sears List of Subject Headings ...
... Classifications in the Draper Catalogue of Stellar Spectra Secchi Draper Comment I A, B, C, D Hydrogen lines dominant ... This catalogue contained spectroscopic classifications for 10,351 stars, mostly north of declination −25° ... Most of the classification was done by Williamina Fleming ...
... Dott's (1964) sandstone classification scheme is one of many classification scheme used by geologists for classifying sandstones ... Dott's scheme is a modification of Gilbert's classification of silicate sandstones, and it incorporates R.L ... Folk's dual textural and compositional maturity concepts into one classification system ...
... locomotives, crane locomotive The locomotives previously organised under the old scheme were transferred into the new classes ... Old scheme New scheme Ia, Ib, Ic IIa (ex Ic) others already retired II IIb IIIa, IIIb, IIIc IIb (ex IIIc) others already retired IV IIb V Vb VI Already retired VII Vc VIII Vc IX IIa Xa, Xb, Xc, Xd VI (ex Xc ...
Famous quotes containing the word scheme:
“We hold these truths to be self-evident:
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Its place in the twentieth-century scheme of things....”
—John Ashbery (b. 1927)