Critical Remarks on MAX Model of Concurrency

A few critical remarks on a mathematical model of concurrency are discussed. As the result we were able to improve the model, to state new problems to be studied later on and to remark that the ideas of our model can be applied to the tasking of ADA, CSP and CCS. It means that apart of standard semantics of ADA there is another one and it is not obvious which semantics is more natural.