Introduction
In library classification, notation refers to the system of symbols (such as numbers, letters, or a combination) used to represent subjects. It is a coded form that helps classify, arrange, and locate books or other materials on the library shelves. A good notation makes the classification system effective and user-friendly.
Qualities of Notation
For a classification system to be successful, its notation should have certain important qualities. These qualities ensure the system is easy to use, expandable, and logical. Below are the key qualities of a good notation:
1. Simplicity
The notation should be simple and easy to understand. Users and library staff should be able to read and interpret it without difficulty.
Example: DDC uses simple decimal numbers (e.g., 500 for Science).
2. Conciseness
A good notation should be short and to the point. Long or complex notations can be confusing and hard to remember.
Example: Instead of writing “History of Mathematics,” a concise notation like 510.9 can be used.
3. Flexibility and Expandability
The system should allow the addition of new subjects without disturbing the existing structure. This is important as new knowledge areas are developed.
Example: DDC allows decimal extensions like 510.92 to represent biographies of mathematicians.
4. Expressiveness
The notation should clearly represent the structure of the subject and its relationship with other subjects.
Example: In Colon Classification, the use of colons and other symbols shows the combination of facets.
5. Uniqueness
Each subject should have a unique notation to avoid confusion. No two subjects should share the same code.
6. Mnemonics
Notations should help users remember the subject by using meaningful letters or numbers.
Example: In UDC, “A” represents general works and “B” philosophy, which can be easier to recall.
7. Hospitality to New Subjects
The system should be designed in a way that allows new or emerging subjects to be added smoothly. This makes the system future-ready.
8. Filing and Arrangement
The notation should help in the logical arrangement of books on shelves. It should follow a clear order that makes browsing easier.
Conclusion
Notation is a backbone of any classification system in libraries. A good notation should be simple, flexible, expressive, and easy to arrange. These qualities help libraries organize their resources effectively and allow users to find information quickly and accurately.