Card Filing Work:

After the Accession List is made the catalogue cards relating to the released documents  are ready for merging with the catalogue. In the case of the Classified Catalogue, the Main Entries and the Cross Reference Entries are to be filed in its Classified Part while all the other Added Entries are to be filed  in the Alphabetical Part. Since there is no classified part in  the dictionary catalogue, all the entries are filed in a single alphabetical sequence. There are prescribed rules for filing. In the classified part of the Classified Catalogue, the ordinal values given to the various symbols in the Call Number will take care of this arrangement. Compared to this, the alphabetical arrangement  will appear to be easier..  But this is not true. There are many cases in alphabetical filing where definite  rules are needed for ensuring consistency in arrangement. Therefore, the library should have formulated rules of alphabetisation of its own, or have adopted any of the standard rules available, like the A.L.A. Rules for Filing, or the Standards for alphabetical arrangement. The Shelf-list Cards are filed in the Shelf-list. 

Catalogue Updating Work:

The updating and maintenance of the library catalogue is the sole responsibility  of the Technical Department. This includes, besides the filing of the entries relating to the newly processed documents, occasional work of corrections, consolidations, and withdrawals. Labelling the catalogue trays and providing adequate Guide Cards inside the trays are also to be attended to. Since the catalogue will be growing corresponding to the growth of the collection there will be a continuous need for the movement of the cards from one tray to another. Parallel to this movement, the labels and guide cards also will have to be moved.