Note: A couple of meta-ontological choices for ontological architectures

Major metaphysical meta-ontological choices, whether made consciously nor not, influence the overall shape of an ontological architecture. This brief note argues that the development of upper ontologies should include a characterisation of their architecture in terms of these choices and their impact. How this might work is illustrated here with examples of two major choices, these are: Perdurantism versus Endurantism and Presentism versus Eternalism.