Understanding the different canons or principles that guide the creation and use of library classification systems is essential in library science. These canons are often grouped into different planes, such as the Idea Plane, the Verbal Plane, and the Notational Plane. The question asks which of the given canons is not associated with the Verbal Plane.

What is the Verbal Plane in Library Classification?

The Verbal Plane in library classification deals with the language used to express concepts and subjects. It focuses on the terms, words, and phrases used to represent classes and isolates within the classification scheme. The goal is to ensure that the terms used are clear, precise, current, and meaningful to the users and makers of the classification system. Issues related to terminology, synonymy, homonymy, and the specificity of terms fall within the scope of the verbal plane.

Analyzing the Given Canons

Let's examine each canon provided in the options to determine its relationship with the Verbal Plane:

• Canon of Context: This canon states that the meaning of a term used in classification should be understood within the specific context of the classification scheme itself. For example, the term "Art" might mean different things in different contexts (e.g., Fine Arts vs. Applied Arts vs. Martial Arts). The classification scheme must define the specific meaning assigned to "Art" within its structure. This canon directly deals with the meaning and interpretation of terms, making it a canon of the Verbal Plane.
• Canon of Enumeration: This canon, primarily belonging to the Idea Plane, emphasizes the need for an exhaustive listing of all coordinate classes or isolates under a common facet or array. While the classes or isolates being enumerated are represented by terms (which relate to the verbal plane), the canon itself focuses on the completeness and structure of the list (array) based on the concepts, not specifically on the terms' meaning or expression. However, Ranganathan places it under the Idea Plane, which deals with the concepts themselves and their relationships.
• Canon of Array: This canon also belongs to the Idea Plane. It dictates that the isolates (or classes) within an array should be arranged in a helpful sequence. This helpful sequence could be chronological, geographical, evolutionary, or some other logical order depending on the facet. The Canon of Array is concerned with the order or arrangement of concepts or isolates, not with the terms used to represent them or their meaning. Therefore, it is a canon of the Idea Plane, not the Verbal Plane.
• Canon of Currency: This canon suggests that the terms used in a classification system should be current and up-to-date. Obsolete or outdated terminology should be avoided, and new terms for new concepts should be incorporated. This canon is explicitly concerned with the language and terminology used, ensuring it reflects contemporary usage. Therefore, it is a canon of the Verbal Plane.

Identifying the Canon Not in the Verbal Plane

Based on the analysis:

• Canon of Context is in the Verbal Plane.
• Canon of Enumeration is primarily in the Idea Plane.
• Canon of Array is in the Idea Plane.
• Canon of Currency is in the Verbal Plane.

The question asks which canon is *not* related to the Verbal Plane. Both Canon of Enumeration and Canon of Array are primarily canons of the Idea Plane. However, among the given options, the Canon of Array is most clearly and exclusively related to the arrangement of concepts (Idea Plane) rather than the terms or their meaning (Verbal Plane). The Canon of Enumeration, while primarily Idea Plane, touches upon the completeness of the list which is represented by terms.

The Canon of Array is concerned solely with the sequence of items within a list (an array), which is a structural aspect belonging to the Idea Plane.

Conclusion

The Canon of Array deals with the arrangement or order of subjects or isolates within a class or facet, which is a concern of the Idea Plane. It is not related to the language, terms, or meaning used to represent these concepts, which are the concerns of the Verbal Plane. Therefore, the Canon of Array is not a canon related to the verbal plane.

Revision Table: Canons and Planes

Additional Information: Planes of Work in Classification

S.R. Ranganathan described three planes of work involved in designing and applying a library classification system:

• Idea Plane: This is the conceptual plane where the intellectual work is done. It involves identifying subjects, breaking them down into facets and isolates, establishing relationships between them, and determining the order of isolates within arrays and the order of facets. Canons in this plane guide concept analysis and structure. Examples include Canon of Facet Sequence, Canon of Array, Canon of Enumeration, etc.
• Verbal Plane: This plane deals with the language used to represent the concepts identified in the Idea Plane. It focuses on selecting appropriate terms, ensuring clarity, consistency, and currency of terminology. Canons here guide the choice and use of words. Examples include Canon of Context, Canon of Currency, etc.
• Notational Plane: This is the plane where symbols (notation) are assigned to the concepts and their relationships. It deals with designing a system of symbols that is brief, mnemonic, flexible, and easy to use. Canons here guide the structure and characteristics of the notation. Examples include Canon of Notational Symbols, Canon of Hospitality, Canon of Mixed Notation, etc.

Understanding these distinct planes helps in analyzing the different aspects involved in creating and using effective library classification schemes.