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The Cybernetics Oriented Language (CYBOL) is an interpretable knowledge modelling- and programming language. It is very flexible, has a simple syntax and is easy to learn. Hence, not only classical software designers- and developers, but also analysts and domain experts may have an interest in CYBOL.
Its simplicity is based on the fact that just one major concept needs to be understood: that of Hierarchy. Well, in fact CYBOL applies it in form of a Double Hierarchy, but is this not very difficult to grasp, as the code examples later in this document will show.

http://cybop.berlios.de/books/cybol/cybol.pdf