  Contemporary development of the Internet of Things (IoT) technology brings a
number of challenges in the Quality Assurance area. Current issues related to
security, user's privacy, the reliability of the service, interoperability, and
integration are discussed. All these create a demand for specific Quality
Assurance methodology for the IoT solutions. In the paper, we present the state
of the art of this domain and we discuss particular areas of system testing
discipline, which is not covered by related work sufficiently so far. This
analysis is supported by results of a recent survey we performed among ten IoT
solutions providers, covering various areas of IoT applications.
