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ETL505: Classification module.

Posted by arlekeno on September 11, 2012

The act of classification when applied to libraries can be described as the systematic arrangement of resources by subject in an order relevant to users’ needs. (Mod6)

Hider Chap 7:

I really need to understand the Dif between Hierarchical schemes, Enumerative schemes and faceted schemes? LCC is Enumerative, and DDC is Hierarchical.

I also REALLY want to know how to Number build.

Exercise 21

1. Explain what a facet is, in bibliographic classification. A single concept, often within a larger subject area.A facet is described as a constituent part of a subject and as a single concept.  Facets are the characteristics that are created when a subject is broken down into smaller aspects, for example, the subject wine is broken down into facets such as colour.
21 Explain the term literary warrant. The scheme should include only resources that actually exist, not what could in future.
.2 Identify the main difference between a general classification scheme and a special one. General C, cover all or wide topics, Special only one or few areas, e.g. map schemes.
3. Explain the following aspects of a classification scheme:schedules : List of concepts in an arranged order
notation : Symbols used to denote and arrange the scheme, e.g. DDC 324.6 or Cutter numbers.
hospitality : Ability of notation to accommodate new concepts.
4. Discuss (briefly) the difference between an enumerative classification scheme and a faceted scheme and give one example that best illustrates each type of scheme.

  1. An enumerative classification scheme lists or enumerates subjects, only loosely grouping together related subjects or aspects of a subject, whereas in faceted schemes, subjects are broken down into single concepts (the facets), each facet is assigned a notation, and facets are combined or synthesised in order to construct notation that will represent complex subjects.  Library of Congress Classification is the most enumerative of the general schemes and Ranganathan’s Colon Classification best illustrates faceted features.
5. Explain what citation order is. The order in which facets are listed.
6. Harvey identifies two distinct purposes of classification schemes in libraries. What are they? Subject access, shelf location
7. What are the main criticisms of Dewey Decimal Classification, according to Hider?

  • social and cultural bias;
  • crowding of some schedules (e.g., technology);
  • decimal base of ten limits hospitality;
  • insufficient specificity, e.g., in highly technical fields; and
  • notation can be long.

Just checked out UDC at

looks interesting, more flexible than DDC, but I wonder how it would be used for shelf location ( as the module suggests it is not as good). It would prob be better for a virtual library or an automated one… which may be UDC big advantage?

How can the Dewey Decimal Classification be used to organise information on the Web? Same as in normal library, you can just use it to group like subjects together.  
Is it effective for this purpose? Yes, but maybe more work not needed for just listing the subject headings without the complete numbers.  
Why? it is not a physichal location?  

Edit: At home watching an old Indian Library Science Video on DDC. First 10 min is pretty basic but it looks like improving for what I need ( I.e. the tables) Interesting that they say not to use the DDC index, work out the main class first. I wonder if that still counts for Dewey online?

and part 2

Sound is terrible, but it is  helpful and better explained than anything else I have found thus far. 

Just checked my Stats. 61 People visted my blog/learning Journal today! Who is so interested in one guy trying to pass one subject?


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