Colon Classification is an analytico-synthetic system of bibliographic classification that represents the subject of a document by decomposing it into facets and combining the associated notational elements in a prescribed citation order [1]. Its conceptual framework organizes subject components through the fundamental categories Personality, Matter, Energy, Space, and Time (PMEST), while its notation and connecting symbols express the ordered relations among these components [1]. The system differs from an enumerative classification scheme in that it does not depend exclusively on a fixed list of pre-combined subject classes: a compound class number is constructed by synthesizing controlled facet isolates to represent a complex subject [1].