Definition: From XML Schema [XML Schema part 2]: A single defining aspect of a value space. Generally speaking, each facet characterizes a value space along independent axes or dimensions.

an aspect or characteristic that can have various values. A collection of facets and values can serve as the basis for a faceted classification system.

A constraint added to the lexical or value space of a simple datatype of the W3C XML Schema datatype system. The list of facets that can be used depends on the simple datatype. W3C XML Schema's facets can be used as parameters in RELAX NG data patterns.

A restriction on a data type. A single defining aspect of value space. There are two types of facets: fundamental and constraining.

a concept (or a

a group of concepts that, for a given search, will be considered to be equivalent by the searcher

an aspect or dimension of an object or piece of information

a single defining aspect of a concept or an object

a single defining aspect that helps determine the set of values for a simple type

A concept group, consisting of terms that will be considered to be equivalent by a searcher for purposes of a given information need. Terms representing these concepts will be searched and the UNION of the resulting sets created using Boolean OR.

Definition: A single defining aspect of a value space. Generally speaking, each facet characterizes a value space along independent axes or dimensions. This definition is taken from XML Schema [XML Schema part 2].

grouping of concepts of the same inherent type, for example, processes, disciplines, people, materials, places, and times.

One side of something that has many sides. In the context of faceted subject analysis, a facet is one of many aspects of a subject.

one of the important aspects of the concept of ``agent''. - The main facets identified here are: state (belief, knowledge, goal, obligations, etc.), behaviour.

A fundamental category by which an object or concept may be described. For example, a child's ball may be described using the facets of size, weight, shape, colour, texture, material and price.