topic map

(semantics)A collection of "topics", their relationships, andinformation sources. A topic map captures the subjects ofwhich information sources speak, and the relationships betweenthem, in a way that is implementation independent.

A topic is a symbol within the computer that representssomething in the world such as the play Hamlet, the playwrightWilliam Shakespeare, or the "authorship" relationship.

Topics can have names. They can also have occurrences, thatis, information resources that are considered to be relevantin some way to their subject. Topics can play roles inrelationships.

Thus, topics have three kinds of characteristics: names,sources, and roles played in relationships. The assignment ofsuch characteristics is considered to be valid within acertain scope, or context.

Topic maps can be merged. Merging can take place at thediscretion of the user or application (at runtime), or may beindicated by the topic map's author at the time of itscreation.

单词	topic map
释义	topic map topic map (semantics)A collection of "topics", their relationships, andinformation sources. A topic map captures the subjects ofwhich information sources speak, and the relationships betweenthem, in a way that is implementation independent. A topic is a symbol within the computer that representssomething in the world such as the play Hamlet, the playwrightWilliam Shakespeare, or the "authorship" relationship. Topics can have names. They can also have occurrences, thatis, information resources that are considered to be relevantin some way to their subject. Topics can play roles inrelationships. Thus, topics have three kinds of characteristics: names,sources, and roles played in relationships. The assignment ofsuch characteristics is considered to be valid within acertain scope, or context. Topic maps can be merged. Merging can take place at thediscretion of the user or application (at runtime), or may beindicated by the topic map's author at the time of itscreation.
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