The appliance area of the computer technologies involves more and more living spheres because of its rapid development. Nowadays smart devices are integrated in the domestic electric appliances. For decades, technologists have been promising the ‘intelligent house’. The vision is usually portrayed as a house filled with technology which will do the dweller’s bidding and take all domestic drudgery out of their lives. Availability of faster, smaller and ever cheaper computing equipment and a variety of wired and wireless network technologies are enabling technologies that bring this vision closer to reality. These technology trends lead to the concept that computing and other ‘smart’ devices will become pervasive, fully networked and ‘disappear’ into the infrastructure of the home. There is no unified standard methodology to describe interface of interconnection between other devices in creation of new home devices. In such cases only one device is evaluated independent of entire system, therefore compatibility problem occurs. Seeking to avoid these mentioned problems, it is necessary to have simulation of home devices methodology. This methodology enables to simplify developers work and to evaluate interconnection between devices.