In this paper, an approach for verifying data exchange requirements in the context of IoT with regard to resource constraints is described. The verification is done using Event-B method. The security requirements are defined based on the correlation concept. The capacity requirements are defined as a set of constraints on the exchanged data. The proposed approach starts by formalizing the data exchange process. Second, it extends this formalization with the data exchange security and capacity requirements. The consistency of each model and the relationship between an abstract model and its refinements are obtained by formal proofs. Finally, we use ProB model-checker to trace possible design errors.
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