The recent development of hardware and computational technologies has contributed to the introduction of intelligent and interactive systems for supporting and extending human activities. Human System Interaction can be defined as the interaction of a user with technology-based systems. This conference will address the transition from traditional Human Computer Interaction to more general Human System Interaction. This is especially important in an era of rapid progress in electronics, which have become smaller, faster, and power-effective . Recently, these developments have lead to the creation of multimodal, wearable interfaces and perceptual media. Research in the field of HSI is conducted on many scales: from microsystems to global solutions like the Internet of Things. The HSI conference will cover research topics related to the traditional combination of hardware, software and human factors as well as theories and methods of psychology, and communication. The conference will focus not only on theories but also on practical insights related to Human System Interaction. HSI is widely applicable to all types of human activity including manufacturing, transport, supply chain, medical treatment , personal care (aged care, the elderly , the disabled), tele-health, education, business, government, the household and remote monitoring and control. Additionally, there are many new research areas open to Human System Interaction. During the conference we would like to inspire and provoke the audience to work on new ideas and solutions that could become standards for future Human System Interaction applications. The International Conference series on Human System Interactions has been providing a platform for exchanging ideas, knowledge, skills and experiences in interactions between human and systems since 2008 when the first conference was organized in Krakow (Poland). The following editions took place in Catania (Italy), Rzeszow (Poland), Yokohama (Japan), Perth (Australia), Sopot (Poland), Lisbon (Portugal). The 8th International Conference on Human System Interactions, HSI 2015, is being organized in Warsaw, Poland.