Which library classification uses numeric codes to organize library materials by subject?

Which library classification uses numeric codes to organize library materials by subject?

• A. Dewey Decimal Classification
• B. Domain
• C. Audio File
• D. WebQuest

Answer: (A)

Library classification systems organize materials by subject using codes that show how topics are related. The Dewey Decimal Classification does this with numbers, creating a decimal, hierarchical map of subjects. Broad areas are assigned whole numbers, and more specific topics add digits to those numbers, so related subjects cluster together on shelves and in catalogs. For example, 500 covers natural sciences, and 520 points to astronomy, with further digits narrowing to more specialized topics. This numeric system helps librarians and readers find items quickly and understand how topics connect. Other terms listed aren’t a library classification method. A domain is just a field or area of knowledge, not a coding scheme. An audio file is a type of digital media, not a way to organize library materials. A WebQuest is an online instructional activity, not a cataloging system.

Library classification systems organize materials by subject using codes that show how topics are related. The Dewey Decimal Classification does this with numbers, creating a decimal, hierarchical map of subjects. Broad areas are assigned whole numbers, and more specific topics add digits to those numbers, so related subjects cluster together on shelves and in catalogs. For example, 500 covers natural sciences, and 520 points to astronomy, with further digits narrowing to more specialized topics. This numeric system helps librarians and readers find items quickly and understand how topics connect.

Other terms listed aren’t a library classification method. A domain is just a field or area of knowledge, not a coding scheme. An audio file is a type of digital media, not a way to organize library materials. A WebQuest is an online instructional activity, not a cataloging system.