Now we introduce two armatures with the properties from the descriptive model above. Assuimg Assume that, due to the piping , pumps #1 and #2 are controlled by both armatures, whereas A200 regulates pump #3 only. This situation is depicted below already indicating, we that the implementation of the relation requires a more complex structure. We find three pumps on the following situation:left side and two armatures on the right side of the relation, respectively.
<table>