Dynamic Evolution by Constraint Orchestration L.P.J. Groenewegen and E.P. de Vink Consistency between collaborating components is notoriously difficult, even more so when a collaboration or the components are going to evolve dynamically, without any form of quiescence. For foreseen, non-migrating collaborations, the coordination modelling language Paradigm tackles the dynamic consistency problems by means of constraint orchestration. In case of migration, originally unforeseen dynamics occur, easily leading to (more) inconsistency. Within the setting of migrating Paradigm models, the special component McPal takes care of the consistency for dynamically evolving collaborations too, by explicitly coordinating originally unforeseen migration. The result applies both to software and its architecture and to business processes.