CONSER members may make changes to subject analysis fields that clearly do not correlate with the subject matter of the publication. Data should be removed only when clearly incorrect, not just when a matter of judgment on predominant subject emphasis. When there is doubt, fields should not be changed.

Subject headings:

The cataloger adds, changes, or deletes subject headings to reflect vocabulary changes in standard subject heading lists as well as heading and subdivision assignment practices in such source documents as Subject Cataloging Manual: Subject Headings, etc. Redundant, largely duplicate fields should be removed from a record.

Classification:

The cataloger adds, changes, or deletes classification fields to reflect additions and changes to standard classification schemes. A clear exception to this is a call number assignment by a national library; in this case, an update class number may be added to the record in a separate field according to the guidelines in Section E.

See also:

B4.3. Changes in cataloging codes or RIs or subject analysis or CONSER practice