BLISS Classification

download BLISS Classification

If you can't read please download the document

  • date post

  • Category


  • view

  • download


Embed Size (px)


Anna Dirks Leigh Hanrihan Konstantin Starikov. BLISS Classification. Bliss Basics. Bliss Classification is faceted . It describes the connections between things. Any class can be combined with any other class which follows it in the schedules. - PowerPoint PPT Presentation

Transcript of BLISS Classification

  • BLISS ClassificationAnna DirksLeigh HanrihanKonstantin Starikov

  • Bliss BasicsBliss Classification is faceted. It describes the connections between things. Any class can be combined with any other class which follows it in the schedules.

    LCC is not a general system for categorizing knowledge; it is a guide to the books in your library. Bliss is a general system for organizing knowledge. Bliss 1 was published between 1940-1953. Bliss 2 (BC2) was begun in 1977 and not finished until 2003!

    Two philosophers from whom Bliss borrows extensively are Auguste Comte and Shiyali Ramamrita Ranganathan.

  • Origins: Comte (1798-1857)Comte was the first person to apply the Scientific Method to the social world. He is the father of Western sociology.Comte's Three Stages: Stage 1: Theological (Nature explained through myth.)Stage 2: Metaphysical (Nature explained through abstract forces.)Stage 3: Positive (Nature explained through the connections of sciences.)

  • Origins: Comte , continuedMore on Positivism: related to the philosophy of Reductionism, which explains that complex things can be explained in terms of simpler parts. Reductionism implies unity in science. This brings us to the Comptean principle of Gradation in Specialty. ...which formed the basis of Bliss v 1.0 (published in 4 volumes between 1940 and 1953)

  • Origins: Ranganathan (1892-1972)Ranganathan was a mathematician and librarian of Tamil origin who developed a system of faceted classification called Colon Classification. The five facets of Ranganathan's Colon Classification are: , [[personality]] ; [[matter]] or property : [[energy]] . [[space]] ' [[time]] Bliss 2 extended this system to 13 Facets.

  • How Bliss Works: 13 Facets The facets are: Thing kind part property material process operation patient product by-product agent space time. They are always used in this order. To classify an item, first you determine which facets the item has.Then you arrange them in order from most specific to most general. (This is the reverse order of the BC2 schedules.) Then, you use the class schedules to look up the notation for the facets which are present.

  • How Bliss Works, continuedLet's look at an outline of the BC2 Schedules, can also look at an outline of a specific class - K (Society). that:The notation is alphanumeric*The notation is very terseLetters/numbers are grouped into sets of 3So how do we put facets together to describe an object?

  • ExamplesTo combine facets, start with the least specific (most general), and concatenate classes from there, dropping the first letter if it is common between two facets.

    Questionnaires on changes in marriage patterns among Muslims in France: KVF QSP BKC E7NK SocietyK7N Questionnaires KCE Social changeKPB K MuslimsKQS MarriageKVF France

  • Rules and Filing If two adjoining facets don't share a common first letter, then just concatenate them as they are.If two adjoining facets have more than just the first letter in common (the first two letters, for example) then drop those first two letters when combing the facets. You can use the Common Auxiliary schedules to specify place, date and language. Citations and filing: You must always follow the order of the facets.The filing order is always general than specific.

  • Pros and ConsIf your collection is limited to items whose facets are well described in the Bliss schedules, then Bliss can be a great system for you. It is simple to create subject indexes using Bliss, because your class numbers are just compound subjects. Unfortunately, The vocabulary is not up to date in all (or possibly any) fieldsFiguring out what attributes correspond to which facets can be a pain in the neck. The schedules are not available online. This system is not widely used.

  • Bliss TodayPerhaps the biggest problem with Bliss today is the lack of up to date schedules for all possible topics. Universities, particularly in Britain, are among the only users of the Bliss system. But what if we had Viral Bliss? What if creating new Bliss schedules was an open process, done by subject experts and shared widely? (What if there were a wikipedia for Bliss?

    Welcome to our presentation! I will be talking about Bliss Classification.

    My partners are Leigh and Konstantin.

    Bliss is really cool because you can describe all of the parts of a work. After doing lots of Bliss research, I had a hard time with the DDC and LC (especially the LC!) homework last night, because you can't describe as many facets of a work using enumerative systems. I had to go to bed and read science fiction until I calmed down. LCC is an enumerative system. DDC has aspects of a faceted system; all of those tables that you go to look things up in allow you to add faceted information about an item to your call number.

    Bliss is not enumerative at all. It is fully faceted. OF course, the usefulness of the available facets depends on two things: accessing the schedules, and having well developed thesauri for your particular subject. If you look at the BC manuals in the cataloging lab, you'll see that some subjects have much more extensive vocabulary than other subjects.

    Bliss himself developed a main class structure and a thesaurus which formed the basis of bc1. His structure is still used today!

    Comtes positive philosophy emanated from his historical study of the progress of the human mind. His sole interest, however, was the western European mind and by mind, he meant the sciences, especially astronomy, physics, chemistry and biology. You may wonder why he did not include mathematics. For Comte, mathematics was a tool and not a science.

    The history of the sciences shows that each science goes through three successive stage: the theological, the metaphysical and the positive. Progress through the three stages was not only inevitable but irreversible. Progress is also asymptotic -- that is, we always approach, but never obtain, perfect positive knowledge. Comtes view of each of the three stages is as follows: [1] the theological -- man views nature as having a will of its own. This stage also contains three stages. (i) animism: objects have their own will, (ii) polytheism: divine wills impose themselves on objects and (iii) monotheism: the will of God imposes itself on objects. [2] metaphysical -- thought substitutes abstractions for a personal will. Here, causes and forces replace desires. The world is one great entity in which Nature prevails. And finally [3] positive -- the search for absolute knowledge, the first cause, is abandoned. In such a scheme, each stage corresponds to a specific form of mental development. The final science which Comte claimed to have discovered and one which had not yet entered its positive stage, was sociology. It was sociology, he claimed, that would give ultimate meaning to all the other sciences -- it was the one science which held the others together. Only sociology would reveal that man is a developing creature who moves through three stages in each of his sciences. With this profound assertion, Comte argued that we could finally understand the true logic of mind. And in the 47th lesson of the fourth volume of the Course of Positive Philosophy, Comte proposed the word sociology for this new science rather than the current expression, physique sociale (or social physics).

    Comte wanted to reform the social order. He thought we could achieve love and peace by reaching agreement on scientific principles. There are churches of positivism that exist today! So why did Ranganathan bother? He had five laws about libraries which are supposedly still used by almost all librarians today. 1. Books are for use, 2. Every person his or her book.3. Every book its reader, 4. Save the time of the reader. 5. The library is a growing organism.After studying in Britain, Ranganathan returned to India a different man. It became a lifelong passion for him to build libraries and improve librarianship. His ideas emerged from his background in mathematics and beliefs in Hindu mysticism. Ranganathan treated library classification as a single unified structure of ideas that flowed from a cohesive set of basic principles. Ranganathan authored an uncountable number of books and articles, established several professional and educational organizations, and participated in library movements around the world.

    why indian complicated; 30 million deities, wide linguistic variance, rules = protectionOf course, the major problem here comes in figuring out the facets. How do things like patient and operation translate in the real world?

    Try to think about describing the work in just one word. Then two words. Then three words. Then four words.

    For example, nursing of children with cancer would go under (Type of person) Pediatrics - (Processes) - Pathological - Cancer - (Actions on) Nursing. Its notation is HXO QEM Y:

    HXO PediatricsHQE CancerHMY Nursing Detailed alphabetical indexes to all the classes are provided using the economies of chain procedure. The BC2 notation is fully faceted and synthetic. It is also ordinal and does not attempt to always reflect hierarchy (Taylor, 2000). The notation consists of capital letters (A-Z) and numerals (1-9) divided into blocks of three. It omits zero because of the latter's similarity to the letter O. The first letter of the classmark indicates the discipline of the work (see BC2 outline). The next letter categorizes the subject into board areas of the discipline. It can be subdivided again for greate