The vast array of his arguments revolve around the fallacy of reification, or misplaced concreteness. It also points to a technological determinist perspective in terms of reification. When used as such a property is a predicate (see also RDF&colon; reification). They concentrated on themes such as alienation, reification and bureaucracy. Reification is widely used in conceptual modeling. Each step involves "data reification", then "operation decomposition". Marx regarded this as a supreme reification. For related usages see Reification (knowledge representation). Social objects are objects that gain meaning through processes of reification (e.g. ritual). For similar usages, see Reification (linguistics). A description of a statement using this vocabulary is called a reification of the statement. Goethe's reification of darkness is rejected by modern physics. Reification data is often said to be made a first class object. This is called reification of a relationship. This is usually known as reification.