Advances in networking over heterogenous infrastructures are boosting market globalization and thereby forcing most software-intensive information systems to be fully distributed, cooperating and evolving to stay competitive. The emerging composed behaviour in such interacting components evolve dynamically/rapidly and unpredictably as market laws and users/application requirements change on-the-fly both at the coarse- type and fine-grained instance levels. Despite significant proposals for promoting interactions and adaptivity using mainly architectural techniques (e.g. components and connectors), rigorously specifying / validating / verifying and dynamically adapting complex communicating information systems both at type and instance levels still remains challenging. In this contribution, we present a component-based Petri nets governed by a true-concurrent rewriting-logic based semantics for specifying and validating interacting distributed information systems. For runtime adaptivity, we enhance this proposal with (ECA-business) rules Petri nets-driven behavioral connectors, and demonstrate how to dynamically weaving them on running components to reflect any emerging behavior. For further information, please visit this web site.