The Role of Objects in UX

O-O-U-X helps people manage complexity not only in their own minds, but also to like form consensus or about that complexity with their teammates. And so in that sense, if you're looking at the research and trying to figure out what the different objects should be, it sounds like there is a tight pairing between object and action. But I'm trying to understand other than just seeing that action, why some actions are referred to more than others? Is there a way for, for object oriented UXers to be able to determine which actions are more, uh, worth investing in, so to speak?