Well that depends on what you want to do - if you're trying to interpret an applied conundrum, it provides a framework for accepting or rejecting justifications towards that question. It doesn't necessarily prescribe a solution, but provides a metric for evaluation of a solution's justification.

Alternatively, on a normative level, you can still debate the merits of the framework when compared to other systems (deontological - virtue - care - etc.) by beginning with meta-ethical axioms and resolving them to normative positions. Consider an ontological framework which doesn't recognize free will of others - this could dramatically inform a delimma between a utilitarian system and an egoist one.