At the beggining of every phase in the Arcadia method, factors have to be defined to characterize the expected output of the layer.
In System need Analysis, those factors 'support or hinder the effective implementation of capabilities" (JL Voirin, Model-based System and Architecture engineering with the Arcadia method)
In Principle/logical Architecture, these factors ‘constraint an influence the architecture definition’
However, I have the feeling, through the examples given in the book and the exeperience on our own systems, that those factors are often quite the same : Performances, costs, life-cycle considerations (mainly maintenance) …
Does anyone has any feedback about that topic ? Is there a clear conceptual difference between those factors?