I am interested in the computer models you discussed in your reply. I am a software engineer by profession, and I am using (by analogy) software engineering models in developing a version of Psychohistory. What makes the modern models of interest is the combination of diverse areas. Some of the areas can be seen as hardware, software, and organization of computers into groups (i.e., domains and networks). Additionally, the software world is working with a legacy (how analogous to human beliefs). If you have any information of these computing models, would you please reply as I think the idea is of great note.