Info

Code
E54
Name
Dimension

Super

CodeName
E1CRM Entity

Domain for

CodeName
P2has type
P3has note
P48has preferred identifier
P137exemplifies
P1is identified by

Range for

CodeName
P15was influenced by
P141assigned
P138represents
P136was based on
P62depicts
P140assigned attribute to
P39measured
P70documents
P17was motivated by
P67refers to
P71lists
P41classified
P129is about
Description

This class comprises quantifiable properties that can be measured by some calibrated means and can be approximated by values, i.e. points or regions in a mathematical or conceptual space, such as natural or real numbers, RGB values etc. An instance of E54 Dimension represents the true quantity, independent from its numerical approximation, e.g. in inches or in cm. The properties of the class E54 Dimension allow for expressing the numerical approximation of the values of an instance of E54 Dimension. If the true values belong to a non-discrete space, such as spatial distances, it is recommended to record them as approximations by intervals or regions of indeterminacy enclosing the assumed true values. For instance, a length of 5 cm may be recorded as 4.5-5.5 cm, according to the precision of the respective observation. Note, that interoperability of values described in different units depends critically on the representation as value regions. Numerical approximations in archaic instances of E58 Measurement Unit used in historical records should be preserved. Equivalents corresponding to current knowledge should be recorded as additional instances of E54 Dimension as appropriate.