Let S be a system. The constructional decomposition diagram associated with S is then a hierarchical representation of the components of S, a set C1, C2, …, CN of components being under another component D in this hierarchy if D is the result of the integration – in the meaning of Definition 0.5 – of the components C1, …, CN5 (C1, …., CN are then classically called “sub-components” of D). The constructional interaction diagrams associated with S are then just the different representations – there is one constructional interaction diagram per integration relation involved in the constructional decomposition diagram – of each such integration relationship that does exist between the different components appearing in the hierarchy modeled by the constructional decomposition diagram...