Chinese Journal of Computers   Full Text
Title	Human Computer Interaction for Ubiquitous/Pervasive Computing Mode
Authors	XU Guang-You TAO Lin-Mi SHI Yuan-Chun ZHANG Xiang
Address	(Pervasive Computing Division, Tsinghua National Laboratory for Information Science & Technology, Beijing 100084) (Department of Computer Science and Technology, Tsinghua University, Beijing 100084)
Year	2007
Issue	No.7(1041—1053)
Abstract &   Background	Abstract Ubiquitous/Pervasive Computing aims to integrate cyberspace into physical space where people reside. In terms of human computer interaction (HCI), this means to extend the interface of HCI from in the front of computer into whole three dimensional spaces, namely the HCI in Physical Space. Contrasting to the conventional compute mode, where physical factors are not involved in the HCI, under Ubiquitous/Pervasive Computing mode the physical factors about users and environment become the important factors in the interaction. As the results, HCI in physical space will possesses following rational characteristics: ①the HCI is essentially the interaction with cyberspace, but a single computer; ②The interfaces of HCI will not rely on the conventional devices such key boards, mouse and monitors, instead they will integrate or become part of artifacts, furniture, even rooms and buildings; ③HCI in dynamic context; ④Implicit HCI supported by context aware computing will be the essential part of the HCI for Ubiquitous/Pervasive Computing mode. keywords Ubiquitous/Pervasive computing; human computer interaction; physical space; cyberspace; context aware; implicit HCI background Ubiquitous/pervasive computing is an emerging technology in computing mode, considered as the reformation to the traditional desk-top computing mode. In terms of HCI, ubiquitous/pervasive computing can be defined as the attempt to break the pattern paradigm of the traditional relationships between users and computational services by extending the computational interface into the user’s environment, namely the 3D physical space. The research on ubiquitous/pervasive computing is in the state of art, especially in its HCI technology. A lot of research effort has been devoted to explore the technology, which can support extending the computational interface into the user’s environment. A number of research areas, such as multi-modal human computer interface, argument reality, tangible interface, wearable computer, are related to this subject, but no of them can fully tackle it, and further there is no clearly understanding about the principle underlying this kind of interface. Besides, HCI for ubiquitous/pervasive computing not only to address the issues related to the interface level, but also, even more important, is to carry out implicit human computer interaction, which is the bases to make "computer invisible", as Mark wiser put it. Implicit HCI is also vital to enable computer entering into the human interaction loop. There is no well recognized theory about implicit interaction yet and only few well constructed experiments are introduced. Based on their research results on smart space the authors put forward the theory of Dual relations in physical and cyberspace (please refer to the following paper: Xu Guang-You, Tao Lin-Mi, Zhang Da-Peng, Shi Yuan-Chun. Dual relations in physical and cyber space. Chinese Science Bulletin, 2006, 51(1): 121-128), which will reveal the new insight about HCI for ubiquitous/pervasive computing. In the light of dual relations in physical and cyberspace, the access information essentially to establish the correspondences between physical and cyberspace and the implicit interaction is of the interaction based on context aware. The paper also provides some convincing results to show how to establish the correspondence between physical and cyberspace and the implicit HCI. The research group has been engaged in the research on ubiquitous/pervasive computing since 90’s of last center, and accomplished a number of important research projects, including "Space Working Space-The HCI technology for Ubiquitous/pervasive computing era" (863 project in the filed computer), "Smart Classroom", "Advanced Emergency Information Center" (Government supported Grand research project during 10-5 period), and also several NSF projects. Due to the research achievements, strong research team and environment, they are granted to establish "The key laboratory of ubiquitous/pervasive computing, Ministry of Education", in 2003. The main task of the Lab. is to promote the research on Ubiquitous/pervasive computing in China and academic exchange and cooperation in all of the world and China, as well.