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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
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Whether subordinates (may) have multiple superordinates. Some classification schemes allow that a kind of thing has more than one superordinate others do not. Multiple supertypes for one subtype implies that the subordinate has the combined characteristics of all its superordinates. This is called
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of individual objects into the classes or groups, and the classes or groups are based on characteristics which the objects (members) have in common.
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The following are examples of different kinds of classification schemes. This list is in approximate order from informal to more formal:
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Whether subtype-supertype relations are distinguished from composition relations (part-whole relations) and from object-role relations.
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Using one or more classification schemes for the classification of a collection of objects has many benefits. Some of these include:
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is an arrangement of classes or groups of classes. The activity of developing the schemes bears similarity to
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metadata registry standard uses classification schemes as a way to classify administered items, such as
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Knowledge and requirements about a kind of thing can be applied to other objects of that kind.
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multiple inheritance (of characteristics from multiple superordinates to their subordinates).
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of their respective superordinates; typically, a hyponym is 'a kind of' its superordinate.
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Keith Allan (2002, p. 260), Natural
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It allows a user to find an individual object quickly on the basis of its kind or group.
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In the abstract, the resulting structures are a crucial aspect of
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while taxonomies tend to be devoted to a single topic.
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Some quality criteria for classification schemes are:
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