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copied!<p>Since I am not fully sure I understand <em>what</em> you are looking for, but perhaps I may be able to help you with some of the parts you are asking for.</p> <p>To go back to the original question </p> <blockquote> <p>Has anyone ever heard of a general (textual) notation that can describe any IT system at any scale?</p> </blockquote> <p>The answer is yes. There is a notation, both well-defined textual and graphically, named <em>Business Object Notation</em>, or simply BON. BON generally works on two different levels, informal and formal. The informal part basically resembles what is already known from UML, except that it has a well-defined syntax. The formal part drills a bit further down deeper and is used to formalize your system components even more precisely (implementation-wise) by applying first-order logic to define pre- and post-conditions of your components (as well as invariants). </p> <p>You should take a look at <a href="http://www.bon-method.com/index_normal.htm" rel="nofollow">http://www.bon-method.com/index_normal.htm</a> as well as the actual book written on the BON subjects <a href="http://www.bon-method.com/book_print_a4.pdf" rel="nofollow">http://www.bon-method.com/book_print_a4.pdf</a> .</p> <p>Furthermore, I should mention that you can get a parser (as well as typechecker) for BON that will enable you to create fancy web-pages for informal charts. This can be found at <a href="http://kind.ucd.ie/products/opensource/BONc/" rel="nofollow">http://kind.ucd.ie/products/opensource/BONc/</a> .</p> <p>Hope it helps!</p>

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