Epistemological Basis of some Common Categories - A Study of Space and Time As Common Concepts

Common categories (often termed as Common Subdivisions) have been an integral part of all Library Classification Systems. The number of common categories, applicable to all classes of subjects stood at Seven (7) tables of common subdivisions and among these Time and Space categories manifest both as common and special categories. Common categories in Library classification was extensively examined by de Grolier, and Ranganathan has also suggested there is scope for comparative study. Time is also treated in dissimilar manner in different classification systems. The paper presents some unified approaches to space and time categories and in this context seeks their epistemological basis.