1. Prepared and discussed by:
Agulto, Ernani A.
IV-15 BLIS

2. INDEXES
Can be categorized many ways;
By arrangement or by searching structure
or by specific subject fields or by purpose.
Can be a mix of different types of indexes.
e.g. alphabetical and author.

3. FORMS of INDEX
By arrangement,
(E.g. alphabetical, classified…)
By the types of materials index,
(E.g. book, periodical, newspaper index…)
By physical form.
(E.g. card, microform, computerized index)

4. ALPHABETICAL INDEXES
Is the most common method.
More convenient and follows familiar
order.
Based on orderly principle of letters of the
alphabet.
All entries are in one alphabetical order,
including subject terms, author names and
place names.

5. ALPHABETICAL INDEXES
MAJOR DRAWBACKS: problems of
synonym and scattering of entries.
Scattering- Subjects are not drawn together
under generic term
E.g. When looking for the information on
janitor fish, do we look for janitor fish or
fish?

6. AUTHOR INDEXES
Not the most common type of indexes, but
not a rarity.
Are those whose entry points are people,
organizations, corporate authors, etc…
Users are guided to titles of documents by
the way of authors.
Authors can also be used as an indirect
subject approach.

7. AUTHOR INDEXES
Authors are strong indicators of subject
content (Cleveland, 1976)
e.g. Freud, Sigmund- Psychology or
psychoanalysis.

8. BOOK INDEXES
Most people (reading public) think of.
Are lists of words, generally alphabetical, at
the back of the book, giving the page
location of the subject or name associated
with each word.
Pinpoints the information to the user.
ISSUE: not every book (e.g reference book)
has a quality index, if not, none at all.

9. CITATION INDEXES
Consists of a list of articles, with a sublist
under each article of subsequently
published papers that cite the articles.
Shows who cited the paper.
This kind of index implies that a cited
paper has an internal subject relationship
with the papers that cited it, and use this
relationship to cluster related documents–
citations reflect document content.

10. CITATION INDEXES
PRIMARY ADVANTAGE: leads the user to
the latest articles.

11. CLASSIFIED INDEXES
has its contents arranged systematically by
classes or subject headings.
Have an important role to play (especially
in scientific indexing, e.g. biology).
But general indexes that are classified
mystify the general users, they do not
understand how they are constructed.
Indexes SHOULD BE user-oriented.

12. COORDINATE INDEXES
allow terms to be combined or
coordinated.
The idea of punching or notching a card
and then using a mechanical device, such as
long needles, to drop out cards containing
the combination of index terms of interest.
The basis of modern retrieval systems,
world wide web search tools.

13. COORDINATE INDEXES
Is really a process; coordinating produces
an index.
e.g. individual index terms Pecan and Trees
are combined, we have a new class of
things: Pecan trees.

14. CUMULATIVE INDEXES
 is a combination or merging of a set of
indexes over time.
Indexes for established works can often
cover many decades.
Generally, apply to journals and to large,
important works and are published as
separate volumes.
Are complex and usually done by teams of
indexers.

15. FACETED INDEXES
Facet, by definition, means one side of
something that has many sides.
In a faceted indexing system, any subject
is not a single unit but has many aspects;
A facet index attempts to discover all the
individual aspects of a subject and then
synthesis them in a way that best describes
the subject under discussion.

16. FACETED INDEXES
A faceted scheme is a type of
synthetic classification,
Often called an analytic-synthetic
system.
PHILOSOPHICAL BASIS: an author looks
at a subject in a different way or brings out
new ideas or a new discovery.

17. FACETED INDEXES
With a faceted system, we put together the class
most closely representing the informational
concepts in the new document.