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It's my understanding that WebDewey contains many built numbers, which can be very useful to classifiers, but I'm not sure I always recognize them when I see them. How are they indicated?
In some contexts in WebDewey, built numbers are marked as such, making them readily recognizable. These are (1) when they appear in a list of search (not browse) results, in which case they are preceded by the letter "B," and (2) when they are the subject of the full record display, in which case they are labeled "Built Class Number" or "Built Table Number."
As you know, regular Dewey schedule and table records have captions that accompany their DDC numbers, e.g., "345.02 Crimes (offenses)". Built numbers, however, because they are created specially for the Relative Index and do not appear in the schedules or tables of the print edition, do not have "true" captions: Relative Index terms serve as captions for built numbers. Relative Index terms often contain two or more terms connected by dashes; therefore, if you see a "caption" or series of captions in WebDewey that consist of these, you are probably looking at a built number or built numbers, as is the case in the following browse display:
If a built number has more than one Relative Index term associated with it, the caption will end in ellipsis points. These display in the search (not browse) results list and when you are viewing the full record. For example:
Finally, sometimes a gap in the Dewey number sequence when you are looking at a browse display will clue you in to the fact that you are looking at built numbers. For example:
