On the aspects of Iot protocols specification and checking

Abstract

Modern level of diverse software systems complexity stipulates the engineering process to be adapted and refined appropriately. The demonstrative examples of such systems are the ones from the Internet of Things domain that, in particular, imply the usage of specialized communication protocols. The concept of the Internet of Things encompasses the billions of heterogeneous smart devices communicating to each other through different protocols. Taking into consideration the variation of communication protocols and its implementations, the interoperability problem arises. Moreover, it should be noted that during the designing of diverse systems, the safety-critical ones in particular, the practice of formal methods usage, especially the model checkers, is becoming more and more popular. The work is addressed to solving the interoperability problem of the Internet of Things domain by way of automated model checking. Goal-to propose an approach to solving the interoperability problem in the Internet of Things domain by way of model checking method usage. The technique applied is as follows: synthesize the abstract specification first, and then this specification should be detailed and formally checked in an automated manner. Results obtained-an approach to checking the interoperability between the components of the Internet of Things system has been proposed. The approach is based on automated formal verification of communication protocols. Synthesis of MQTT protocol specification has been considered as a case study. The novelty of work is about the interpretation of interoperability checking problem from the viewpoint of consistency at communication protocols level. The practical value of the results obtained is about the possibility of application of the approach proposed in order to exclude the unexpected scenarios of the Internet of Things System's components communication, communication failures in particular.