Theory Of Classification

Step 1: Understand Ranganathan's Three Planes of Work. S.R. Ranganathan divided the work of classification into three successive planes:

Step 2: Identify the Canons of the Verbal Plane. The Canons for the Verbal Plane deal with the choice and rendering of terms. These include the Canon of Currency (using current terms), Canon of Context (terms should be understood in context), Canon of Enumeration (terms should be listed systematically), and Canon of Reticence (using appropriate, non-judgmental terms).

Step 3: Identify the Canon of Array. The Canon of Array belongs to the Notational Plane. It states that the classes in an array (a set of coordinate classes) should be represented by notation that shows their relationship. It deals with the structure of the notation itself, not the words used.