sir Iam sending this letter from india,kerala.we r installed koha2.2.0 and input some data after that we upgraded in to 2.2.4 ,we are using fedora core3 . sir we have some doubts regarding data entry mainly on clasification ,in that item number .we are using DDC 21st . for eg: professional c# programming author simon robins,we classified it as 005.133c# ROB-P if it is the second book giving a semicolon and 1 ie. 005.133c# ROB-P;1.we are using ROB-P as item number ,is it the right procedure?.If we have same book(another copy) with different accesion date,supplier bill number and date ,accession number,how to enter this again? we have to enter other detatils(other details are same)again.the how to add the copies. another doubt is on maintaining the thesaurus .how to creae this .we try to create this but we didn't get any result. we are maintainig the biblio details like this IN THE TAB 0 020 - INTERNATIONAL STANDARD BOOK NUMBER + a International Standard Book Number * 022 - INTERNATIONAL STANDARD SERIAL NUMBER + a International Standard Serial Number 024 - OTHER STANDARD IDENTIFIER + a Standard number or code d Additional codes following the standard number or code 037 - SOURCE OF ACQUISITION + a Stock number * 082 - DEWEY DECIMAL CALL NUMBER + a Classification number * b Item number * 100 - MAIN ENTRY--PERSONAL NAME a Personal name * g Miscellaneous information q Fuller form of name 110 - MAIN ENTRY--CORPORATE NAME a Corporate name or jurisdiction name as entry element IN THE TAB 1 245 - TITLE STATEMENT a Title * b Remainder of title c Statement of responsibility, etc * h Medium * n Number of part/section of a work s Version 246 - VARYING FORM OF TITLE + a Title proper/short title b Remainder of title 250 - EDITION STATEMENT a Edition statement 256 - COMPUTER FILE CHARACTERISTICS a Computer file characteristics 260 - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) + a Place of publication, distribution, etc * b Name of publisher, distributor, etc * c Date of publication, distribution, etc * 300 - PHYSICAL DESCRIPTION + a Extent * b Other physical details c Dimensions e Accompanying material f Type of unit g Size of unit 340 - PHYSICAL MEDIUM + 3 Materials specified * 490 - SERIES STATEMENT + a Series statement v Volume number/sequential designation x International Standard Serial Number 562 - COPY AND VERSION IDENTIFICATION NOTE + b Copy identification * c Version identification IN THE TAB 2 500 - GENERAL NOTE + a General note 520 - SUMMARY, ETC. + a Summary, etc * 770 - SUPPLEMENT/SPECIAL ISSUE ENTRY + a Main entry heading b Edition d Place, publisher, and date of publication m Material-specific details o Other item identifier t Title x International Standard Serial Number z International Standard Book Number INTHE TAB 3 440 - SERIES STATEMENT/ADDED ENTRY--TITLE + a Title n Number of part/section of a work v Volume number/sequential designation 600 - SUBJECT ADDED ENTRY--PERSONAL NAME + a Personal name d Dates associated with a name t Title of a work 610 - SUBJECT ADDED ENTRY--CORPORATE NAME + a Corporate name or jurisdiction name as entry element b Subordinate unit 655 - INDEX TERM--GENRE/FORM + a Genre/form data or focus term INTHE TAB4 700 - ADDED ENTRY--PERSONAL NAME + a Personal name 710 - ADDED ENTRY--CORPORATE NAME + a Corporate name or jurisdiction name as entry element 856 - ELECTRONIC LOCATION AND ACCESS + 3 Materials specified (NR) i Instruction (R) q Electronic format type (NR) u Uniform Resource Identifier (R) x Nonpublic note (R) IN THE TAB5 942 - Biblioitem information + a Institution code * c item type * IN THE TAB 6 952 - ITEM INFORMATION + b homebranch * d holdingbranch * e accession number * p barcode * q supplier name * r price * s bill no. * t bill date * v dateaccessioned * y notforloan * these are the detailswe maintaining the how to manage the koha link . plese give me the proper advice .waiting for your immediate reply. thanking you yours faith fully Librarian SNGIST Library(MCA MBA College), Thekkethazham, Mannam.P.O, N.Paravur Ernakula Distric PIN-683 520 India,Kerala Ph:0484-2440220/2440299