6. CONCLUSION
It is now acknowledged that the collaboration between heterogeneous organizations is a crucial issue for their survival into an unstable environment, especially in a crisis management context. The proposal within these research works assumes that their collaboration is based on the interoperability of their Information Systems, conducted through a Mediation Information System. It supports the execution of the collaborative processes between the collaboration partners. However, the unstable nature of crisis situation and of its environment may compromise the relevance of the crisis response to achieve the stakeholders’ goals and the proper execution of the corresponding workflows. Taking into account the emergence of new constraints during the runtime of the workflows led us to focus on the collaborative process agility. Two major steps are necessary to ensure the agility of collaborative workflows: (i) the detection of an evolution that compromises the pursuit of the collaborative goals through the deployed workflows; (ii) the deduction of the behaviour to adopt to overcome the detected evolution and achieve objectives whatever happens, within a very short time. Combining the principles and strengths of both Event-Driven Architecture and Service Oriented Architecture not only allow us to ensure an agile architecture but also provide the required context awareness to the Agility Service.
One can note that the adaptation step is strongly domain dependent. For each domain layer of the meta model, new High Level Classes have to be determined and matches between these HLC and the six ranks of adaptation have to be done. A way to infer knowledge about HLC and their relationships to the adaptation ranks should be studied, in order to facilitate the use of the defined proposal for new business domains.