If you want to classify your tests not only by severity and category, but by other criteria, you have just to add your own handler as it described in the section Writing your handler. Note that in the case of classifying handlers, their process method should always return to ClassifiersHandler a Boolean object. Except the fact that it must receive a Boolean from its "children" the ClassifiersHandler knows nothing about the handlers it calls, thus making it more robust. If you return to it an object of another type, you will receive ClassCastException.