Help BMB - Table of contents 2.2.8 Subject tree

The subject tree is only available on the advanced search screen (under the category More search possibilities).

All index terms

The subject tree is generated from a controlled vocabulary of subject terms with up to four levels: the highest level (level 1) corresponds to nine broad divisions of knowledge, while the lowest (level 4) is a specific subdivision of one of over 1000 third-level subjects, e.g. for the subject of hospitals run by the Augustinian canons, the entry is:

   “Religion – Religious orders – Augustinian canons, order – hospitals”

   where “Religion” is the highest level; “Religious orders” level 2; “Augustinian canons, order” level 3; with “hospitals” a final subdivision at the lowest level.

The level 3 and level 4 entries are also displayed alphabetically in the Subjects browselist. Thus, under “Augustinian canons, order” there are over forty subdivisions, from “agriculture” to “wine-trade”. The first subheading (General) represents entries where there is no subdivision of the level 3 subject.

Click the search term to drill down to a lower level (1) or select a search term by marking the selection box (2). At the top of the screen an overview of the selected keywords is given; unmark the checkbox to remove keywords from the selection (3). Use the radio buttons to change the Boolean relation between the different items (And/Or) (4). To use the selected items as search criteria use the Insert/Close button (). Once back on the search screen the selected search items can be altered by clicking on the search items.

Subject tree