INDEXING SYSTEMS/ ORIGINATORS AND YERS

Sr. No.	Indexing System	Inventor	Year
1	PREserved Context Indexing System(PRESIS)	Derik Austin	1968
2	Chain Indexing	Dr. S.R. Rangnathan	1934
3	Postulate Based Permuted Subject Indexing (POPSI)	G. Bhattacharya	1979
4	Uniterm Indexing	M.  Taube	1953
5	Citation Indexing	A.   Garfield
6	Subject Indexing	M.E. Sears
7	Key Word Indexing	H.P. Luhn	1959
8	Automated Indexing	H. Ohlman
9	SLIC Indexing	J.R. Sharma
10	Thesaurus Indexing	P.M. Rogget
11	Systematic indexing	Kaiser, J.	1911