Ch Bakht Yar Zafar

UDC is based on what classification system?

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UDC, or Universal Decimal Classification, is a system for organizing and classifying library materials that was developed by Paul Otlet and Henri La Fontaine in the late 19th century. It is not based on any previous classification system, but rather represents a new approach to the organization of library materials.

The UDC system is based on the idea of organizing materials according to their subject matter using a system of decimal numbers. Each number represents a different category or subclass, and the relationships between the categories are indicated by the placement of the numbers. For example, a book about the history of agriculture might be classified using the notation “63:631,” which would indicate that it is a book about the history of agriculture, which is a subclass of “Agriculture,” which is a subclass of “Technology (applied sciences).”

The UDC system is widely recognized as a comprehensive and flexible system for organizing and classifying library materials, and it continues to be widely used in libraries around the world.

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Explain Relative Index in DDC?

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In the Dewey Decimal Classification (DDC) system, a Relative Index is a type of reference tool that is used to help users locate specific topics or themes within the classification system. A Relative Index is typically a list of terms or phrases that are related to a particular subject or topic, along with the corresponding decimal numbers that represent the class, category, or subcategory where that topic is discussed in the DDC system.

Relative Indices are an important part of the DDC system, as they allow users to locate specific topics or themes within the classification system even if they do not know the exact decimal number that represents that topic. They are typically organized alphabetically, and they may include cross-references to other terms or phrases that are related to the same topic.

In general, Relative Indices are used in conjunction with the main classes, subclasses, and categories of the DDC system to help users find and access specific information within the classification system. They are an important reference tool for librarians and patrons, and they are an essential part of the DDC system.

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Who owns all the copyrights of DDC?

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The copyrights to the Dewey Decimal Classification (DDC) system are owned by the Online Computer Library Center (OCLC), which is a nonprofit organization based in Dublin, Ohio. OCLC is an international consortium of libraries that provides a range of services and resources to libraries and their users, including the DDC system.

OCLC has owned the copyrights to the DDC system since 1988, when it acquired the rights from the American Library Association (ALA), which had previously been the copyright holder for the DDC system. OCLC is responsible for maintaining and updating the DDC system, and it publishes both print and digital versions of the classification system. The digital version of the DDC system, known as Web Dewey or E-DDC, is available online and is used by libraries and researchers around the world to classify and organize materials according to subject matter.

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What is the basic plan of DDC?

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The basic plan of the Dewey Decimal Classification (DDC) system is a hierarchical structure that is based on a decimal numbering system. The system is divided into 10 main classes, which are arranged according to subject matter. Each main class is further divided into subclasses and categories, and each subclass and category is further divided into more specific subcategories and sub-subcategories.

The main classes of the DDC system are:

  1. Philosophy and psychology
  2. Religion
  3. Social sciences
  4. Language
  5. Pure science
  6. Technology
  7. Arts and recreation
  8. Literature
  9. History and geography
  10. Miscellaneous

Each main class is assigned a unique decimal number, and the subclasses and categories within each main class are assigned decimal numbers that are based on the main class number. For example, the subclass “Mathematics” within the main class “Pure science” (class 5) is represented by the decimal number “510,” while the category “Trigonometry” within that subclass is represented by the decimal number “517.”

In addition to the decimal numbering system, the DDC system also includes a system of captions and notation schedules that provide more detailed information about the meaning and content of each class, category, and subcategory. These tools are used in conjunction with the decimal numbering system to create a comprehensive and detailed classification system that is used to organize and classify books and other materials according to subject matter in libraries.

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DDC is based on what classification system?ڈی ڈی سی کس درجہ بندی کے نظام پر مبنی ہے؟

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The Dewey Decimal Classification (DDC) system is based on a decimal numbering system, in which each class, category, and subcategory is assigned a unique decimal number. The system is hierarchical, with 10 main classes at the top and more specific categories and subcategories below them. The main classes are arranged according to subject matter, and each subclass and category is further divided and refined according to specific topics or themes.

The DDC system is an artificial classification system, which means that it is not based on the inherent characteristics or traits of the materials being classified, but rather on criteria that have been chosen by the person or group creating the classification system. In the case of the DDC, the criteria for classification are based on subject matter, and the system is designed to be flexible and adaptable so that it can be used to classify a wide range of materials.

The DDC system is widely used in libraries around the world to organize and classify books and other materials according to subject matter, and it is considered to be an essential tool for organizing and accessing information in libraries.

DDC is based on what classification system?ڈی ڈی سی کس درجہ بندی کے نظام پر مبنی ہے؟ Read More »

Why and how Melvil Dewey thought to develop his own classification system?کیوں اور کیسے میلویل ڈیوی نے اپنا درجہ بندی کا نظام تیار کرنے کا سوچا؟

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Melvil Dewey developed the Dewey Decimal Classification (DDC) system as a way to organize and classify the books in the Amherst College Library, where he was working as a librarian in the late 19th century. At the time, library classification systems were generally based on a hierarchical structure, with broad main classes at the top and more specific subclasses and categories below them. However, Dewey felt that these systems were too broad and general, and he believed that there was a need for a more detailed and specific classification system that would allow for greater precision and accuracy in organizing and accessing library materials.

To develop his own classification system, Dewey began by studying the existing systems that were in use at the time, and he drew on his own knowledge and experience as a librarian to identify the strengths and weaknesses of each system. He then used this information to create a new classification system that was based on a decimal numbering system, with 10 main classes at the top and more specific categories and subcategories below them.

Dewey’s classification system was designed to be flexible and adaptable, and he believed that it would be more efficient and effective than the existing systems for organizing and accessing library materials. He published the first edition of the DDC system in 1876, and it has since become one of the most widely used library classification systems in the world.

Why and how Melvil Dewey thought to develop his own classification system?کیوں اور کیسے میلویل ڈیوی نے اپنا درجہ بندی کا نظام تیار کرنے کا سوچا؟ Read More »

Under what title the DDC first time published?

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The first edition of the Dewey Decimal Classification (DDC) system was published in 1876 under the title “A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library.” This original edition of the DDC was relatively small, with just 10 main classes and a few hundred subcategories.

Since its initial publication, the DDC system has undergone numerous revisions and updates, and it has grown to become a comprehensive classification system that covers a wide range of subjects and topics. Today, the DDC is published by the Online Computer Library Center (OCLC), and it is used by libraries around the world to organize and classify books and other materials according to subject matter.

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