dmBridge supports "term clouds," which is a broader way of saying that it supports clouds based on social tags (tag clouds), and clouds based on field vocabulary (vocabulary clouds).
A cloud is a visual cluster of words or phrases based on some kind of vocabulary. This vocabulary may be the contents of one or more local metadata fields, or a user-submitted vocabulary ("folksonomy"). dmBridge supports both types. Normally, terms in a cloud have some kind of visual distinction from each other (color and/or size) based on the frequency that they appear in the information corpus. On a web page, these distinctions are controlled by CSS properties like
dmBridge is able to generate term clouds based on Dublin Core field vocabulary (see
Draw::vocabularyAsCloud()). Social tag clouds are output by
Draw::tagsAsCloud(). Both classes output tags as HTML anchor (
<a>) elements with no enclosing element. These elements receive a CSS class attribute of
dmTagX, where X is an integer from 1 to 10. With social tags, all tags are output with the same class of