You may wish to consider a combination of a main hierarchical taxonomy (mobile->wheels->...) with tag keys for attributes (contains homebrew sensor). User may search both ways. Eric (25 years ago, 2-Nov-99, to lugnet.robotics)
Letting them search both ways might be too much work for the Russell and/or the folks putting this system together. A heirarchical taxonomy is all right as long as it allows for each "node" to have more than one child and more than one parent. (...) (25 years ago, 2-Nov-99, to lugnet.robotics)
