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(June 2002)

There are at least two basic problems apparent in the conversion of call number data, both with potentially serious implications.

1. Variable subfield coding, depending upon the old HULPR coding. In many older records, each portion of a call number was entered in a separate subfield b. During data conversion, the first such subfield was converted to an 852 subfield h; the remaining subfields were converted to subfield i's. This does not affect indexing or browsing, but it does affect the appearance of the call number: the different portions of the call number will display with intervening spaces, but punctuation between portions will not appear unless it is actually present in the 852. It also hampers reporting, so please change any non-LC classed material so that the entire call number appears in subfield h.

HULPR tagging:

ALEPH tagging:

OPAC display:

|b Inc |b 201

|h Inc |i 201

Inc 201

|b EC75 |b H7267 |b Zz758b

|h EC75 |i H7267 |i Zz758b

EC75 H7267 Zz758b

2. Call number ranges split between indexes. In HULPR, call numbers for some Houghton collections were not coded consistently, e.g. ca. 10% of Widener transfers were coded "8c" instead of "9c". All HULPR locs. coded "8c" (e.g. some Widener transfers, all HRR items) have been converted as if they were Widener call numbers, and these call numbers can be browsed only in the Widener call number index. All HULPR locs coded "9c" can be browsed only in the "other" call number index. There are also a few other anomalies, e.g. some B call numbers converted as if they were LC call numbers! In short, it is not yet possible for some Houghton collections to call up a complete online shelf list, and call number browses are problematic.

NOTE (9/20/2011): While most of these problems have now been taken care of, individual instances may be found and should be corrected.