 In information science a conceptualization is an abstract simplified view of some selected part of the world, containing the objects, concepts, and other entities that are presumed of interest for some particular purpose and the relationships between them. To three an explicit specification of a conceptualization is an ontology, and it may occur that a conceptualization can be realized by several distinct ontologies. An ontological commitment in describing ontological comparisons is taken to refer to that subset of elements of an ontology shared with all the others.For five an ontology is language dependent its objects and interrelations described within a language it uses, while the conceptualization is always the same, more general, its concepts existing independently of the language used to describe it.Six the relation between these terms is shown in the figure to the right. Not all workers did knowledge engineering use the term conceptualization, but instead refer to the conceptualization itself, or to the ontological commitment of all its realizations, as an overarching ontology dot seven.