At the level of perception the ideas or notions resulting from such construations are not simple nor accurate, but they can become so by further cognizing operations. […] aggressive, retreative, or indifferent; and functions for evaluative construations, or as Reid calls its for matters of taste, as in aesthetic appreciation, and perhaps even for moral and religious appreciation.
Source: wiktionary
This gives rise to nonuniform and inconsistent construations of the legal variables and hence the rules involved. Such rules are therefore said to be “open textured”, i.e. their boundaries are not fixed. The much required uniform and consistent construations can be obtained by automated knowledge-based systems [HF85]. Such automated systems should be capable of focusing or viewing only at the particular or related fact situations or contexts as the lawyers do.
Source: wiktionary