Figure 9. As a more realistic example of weak and strong dependencies, the figure illustrates three parallel sub-state-transition diagrams of a very classical immunological situation with lymphocytes differentiating, migrating and dividing (in 3 successive stages).

When entering its dividing cycle, all other transitions turn out to be impossible. This is indicated by the presence of [Not cycle] with labeling the compound state of dividing cell. Some of the transition rates “weakly” depend on the states where the lymphocyte is currently found in the other parallel tracks. indicates the birth rate to naive cells.