Our everyday environments are gradually becoming intelligent, facilitated both by technological development and user activities. Although large-scale intelligent environments are still rare in actual everyday use, they have been studied for quite a long time, and several user studies have been carried out. In this paper, we present a user-centric view of intelligent environments based on published research results and our own experiences from user studies with concepts and prototypes. We analyze user acceptance and users’ expectations that affect users’ willingness to start using intelligent environments and to continue using them. We discuss user experience of interacting with intelligent environments where physical and virtual elements are intertwined. Finally, we touch on the role of users in shaping their own intelligent environments instead of just using ready-made environments. People are not merely “using” the intelligent environments but they live in them, and they experience the environments via embedded services and new interaction tools as well as the physical and social environment. Intelligent environments should provide emotional as well as instrumental value to the people who live in them, and the environments should be trustworthy and controllable both by regular users and occasional visitors. Understanding user expectations and user experience in intelligent environments, and providing users with tools to influence the environments can help to shape the vision of intelligent environments into meaningful, acceptable and appealing service entities for all those who live and act in them.
References
[1]
Weiser, M. The Computer for the 21st Century. Sci. Am. 1991, 265, 94–104. (reprinted in 2002, , 19-25).
[2]
Ducatel, K; Bogdanowicz, M; Scapolo, F.; Leijten, J; Burgelman, J.C. ISTAG Scenarios for Ambient Intelligence 2010; European Commission, 2001.
[3]
Cook, D.J.; Das, S.K. How smart are our environments? An updated look at the state of the art. Pervasive and Mobile Comput. 2007, 3, 53–73, doi:10.1016/j.pmcj.2006.12.001.
[4]
Aarts, E. Technological Issues in Ambient Intelligence. In The New Everyday Visions of Ambient Intelligence; Aarts, E., Marzano, S., Eds.; 010 Publishers: Rotterdam, The Netherlands, 2003; pp. 12–17.
[5]
Aarts, E.; Grotenhuis, F. Ambient Intelligence 2.0: Towards Synergetic Prosperity. In AmI 2009, LNCS 5859; Tscheligi, M., Ed.; Springer-Verlag: Heidelberg, Germany, 2009; pp. 1–13.
[6]
Pine, B.J.; Gilmore, J.H. Welcome to the experience economy. Harvard Bus. Rev. 1998, 110, 145–172.
[7]
Hiltunen, M.; Laukka, M.; Luomala, J. Professional mobile user experience; IT Press: Helsinki, Finland, 2002.
[8]
Bhattacherjee, A. Understanding information systems continuance: an expectation–confirmation model. MIS Quart. 2001, 25, 351–370, doi:10.2307/3250921.
[9]
Arhippainen, L.; T？hti, M. Empirical evaluation of user experience in two adaptive mobile application prototypes. In Proceedings of the 2nd International Conference on Mobile and Ubiquitous Multimedia (MUM’03); ACM Press: New York, NY, USA, 2003; pp. 27–34.
[10]
Karapanos, E.; Zimmerman, J.; Martens, J-B. User experience over time: an initial framework. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI’09); ACM Press: New York, NY, USA, 2009; pp. 729–738.
[11]
International Organization for Standardization. ISO FDIS 9241-210: Ergonomics of human system interaction—Part 210: Human-centred design for interactive systems. ISO, 2010.
[12]
？lykk？iden ymp？rist？jen suunnittelu (Designing smart environments). Kaasinen, E., Norros, L., Eds.; Teknologiateollisuus, 2007. (in Finnish).
[13]
Plomp, J.; Heinil？, J.; Ikonen, V.; Kaasinen, E.; V？lkkynen, P. Sharing content and experiences in smart environments. In Handbook of Ambient Intelligence and Smart Environments; Nakashima, H., Aghajan, H., Augusto, J.C, Eds.; Springer: New York, NY, USA, 2010; pp. 511–533.
[14]
Ishii, H.; Ullmer, B. Tangible Bits: Towards Seamless Interfaces between People, Bits and Atoms. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI’97); ACM Press: Atlanta, GA, USA, 1997; pp. 234–241.
[15]
Ikonen, V.; Niemel？, M; Kaasinen, E. Scenario-Based Design of Ambient Intelligence. Lecture Notes Comput. Sci. 2006, 4239, 57–72.
[16]
Albrechtslund, A. House 2.0: towards an ethics for surveillance in intelligent living and working environments. Hinman L.;, Brey, P.; Floridi L.;, Grodzinsky, F.; Introna, L., Eds.; Centre for Telematics and Information Technology (CTIT), University of Twente: Twente, The Netherlands, 2007; pp. 7–16.
[17]
Koskela, T.; V？？n？nen-Vainio-Mattila, K. Evolution towards smart home environments: empirical evaluation of three user interfaces. Pers. Ubiquitous Comput. 2004, 8, 234–240.
[18]
Noh, M.J.; Kim, J.S. Factors influencing the user acceptance of digital home services. Telecomm. Policy 2010, 34, 672–682, doi:10.1016/j.telpol.2010.08.004.
[19]
Brown, I.; Adams, A.A. The ethical challenges of ubiquitous healthcare. Int. Rev. Inf. Ethics 2007, 8, 53–60.
[20]
Gill, J. Ambient Intelligence - Paving the way; Cost, 2008. 2008. Available online: http://www.tiresias.org/cost219ter/ambient_intelligence/ (accessed 17 December 2012).
[21]
Niemel？, M.; Fuentetaja, F.R.; Kaasinen, E.; Gallardo, J.L. Supporting independent living of the elderly with mobile-centric ambient intelligence: user evaluation of three scenarios. Lecture Notes Comp. Sci. 2007, 4794, 91–107.
[22]
Zaad, L.; Allouch, S.B. The influence of control on the acceptance of Ambient Intelligence by elderly people: an explorative study. Lecture Notes Comput. Sci. 2008, 5355, 58–74.
[23]
Aarts, E.; Wichert, R. Ambient Intelligence. Technology Guide; Springer-Verlag: Heidelberg, Germany, 2009; pp. 244–249.
[24]
Kaasinen, E.; Niemel？, M.; Tuomisto, T.; V？lkkynen, P.; Jantunen, I.; Sierra, J.; Santiago, M.A.; Kaaja, H. Ubimedia based on readable and writable memory tags. Multimedia Systems 2010, 16, 57–74, doi:10.1007/s00530-009-0171-3.
[25]
Ikonen, V.; Kaasinen, E. Ethical Assessment of Future-Oriented Design Scenarios. In Proceedings of the Tenth International Conference ETHICOMP 2008, Mantova, Italy, 2008. Bynum, T.W., Calzarossa, M.C., De Lotto, I., Rogerson, S., Eds.;
[26]
Lee, J.; Yoon, J. Exploring users' perspectives on ubiquitous computing. In Proceedings of the 4th International Conference on Ubiquitous Information Technologies & Applications (ICUT'09); IEEE: Piscataway, NJ, USA, 2009; pp. 1–6.
[27]
Kuutti, K.; Keinonen, T.; Norros, L.; Kaasinen, E. ？lyk？s ymp？rist？ suunnittelun haasteena (Smart environment as a design challenge). In ？lykk？iden ymp？rist？jen ekologinen suunnittelu (Ecological approach to the design of intelligent environments); Kaasinen, E., Norros, L., Eds.; Teknologiateollisuus, 2007. (In Finnish).
[28]
Roto, V. Web browsing on mobile phones—characteristics of user experience. Doctoral Dissertation, Helsinki University of Technology, Espoo, 2006.
[29]
Davis, F.D. Perceived usefulness, perceived ease of use, and user acceptance of information technology. MIS Quarterly 1989, 13, 319–340, doi:10.2307/249008.
[30]
Venkatesh, V.; Davis, F.D. A theoretical extension of the technology acceptance model: four longitudinal field studies. Manag. Sci. 2000, 46, 186–204, doi:10.1287/mnsc.46.2.186.11926.
[31]
Venkatesh, V.; Morris, M.G.; Davis, G.B.; Davis, F.D. User acceptance of information technology. MIS Quarterly 2003, 27, 425–478.
[32]
Kaasinen, E. User Acceptance of Mobile Services. Int. J. Mobile Human Comput. Interaction 2009, 1, 79–97, doi:10.4018/jmhci.2009010105.
[33]
Shin, D.-H. Ubiquitous computing acceptance model: end user concern about security, privacy and risk. Int. J. Mobile Commun 2010, 8, 169–186, doi:10.1504/IJMC.2010.031446.
[34]
Hossain, M.M.; Prybutok, V.R. Consumer acceptance of RFID technology: An exploratory study. IEEE Trans. Eng. Manag. 2008, 55, 316–328, doi:10.1109/TEM.2008.919728.
[35]
Kim, S.; Garrison, G. Investigating mobile wireless technology adoption: An extension of the technology acceptance model. Inf. Syst. Front. 2009, 11, 323–333, doi:10.1007/s10796-008-9073-8.
[36]
Niemel？, M.; Walldén, S. Expert views on user acceptance of smart environments. J. Ambient. Intell. Smart. Environ. 2012. (submitted).
[37]
Scholtz, J.; Consolvo, S. Toward a Framework for Evaluating Ubiquitous Computing Applications. Human-Computer Interaction 2001, 16, 97–166, doi:10.1207/S15327051HCI16234_02.
[38]
Allouch, S.B.; van Dijk, J.; Peters, O. The acceptance of domestic ambient intelligence appliances by prospective users. Lecture Notes Comput. Sci. 2009, 5538, 77–94.
[39]
R？cker, C. Perceived Usefulness and Perceived Ease-of-Use of Ambient Intelligence Applications in Office Environments. Lecture Notes Comput. Sci. 2009, 5619, 1052–1061, doi:10.1007/978-3-642-02806-9_120.
[40]
Yu, Z.; Zhou, X.; Yu, Z.; Park, J.H.; Ma, J. iMuseum: A scalable context-aware intelligent museum system. Comput. Commun. 2008, 31, 4376–4382, doi:10.1016/j.comcom.2008.05.004.
[41]
Ziefle, M.; R？cker, C. Acceptance of pervasive healthcare systems: A comparison of different implementation concepts. ICST: Gent, Belgium, 2009; pp. 1–6.
[42]
Misker, J.M.V.; Lindenberg, J.; Neerincx, M.A. Users want simple control over device selection. In Proceedings of the Joint sOc-EUSAI Conference 2005, Grenoble, France, 2005.
[43]
Lim, B.; Dey, A.; Avrahami, D. Why and why not explanations improve the intelligibility of context-aware intelligent systems. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems; 2009; pp. 2119–2128.
[44]
Cheverst, K.; Byun, H.E.; Fitton, D.; Sas, C.; Kray, C.; Villar, N. Exploring issues of user model transparency and proactive behaviour in an office environment control system. User. Model. User-adapt. Interact. 2005, 15, 235–273, doi:10.1007/s11257-005-1269-8.
[45]
Bellotti, V.; Edwards, K. Intelligibility and accountability: human considerations in context-aware systems. Human–Computer Interaction 2001, 16, 193–212, doi:10.1207/S15327051HCI16234_05.
[46]
Assad, M.; Carmichael, D.J; Kay, J.; Kummerfeld, B. PersonisAD: Distributed, active, scrutable model framework for context-aware services. Lecture Notes Comput. Sci. 2007, 4480, 55–72.
[47]
Barkhuus, L.; Dey, A. Is context-aware computing taking control away from the user? Three levels of interactivity examined. In Ubiquitous Computing; Springer -Verlag: Berlin/Heidelberg, Germany, 2003.
[48]
Blumendorf, M.; Feuerstack, S.; Albayrak, S. Multimodal Smart Home User Interfaces. In International Workshop on Intelligent User Interfaces for Ambient Assisted Living (IUI4AAL). Presented at the International Conference on Intelligent User Interfaces, Spain, 2008.
[49]
Badia, S.B.I.; Valjamae, A.; Manzi, F.; Bernardet, U.; Mura, A.; Manzolli, J.; Verschure, P.F.M.J. The effects of explicit and implicit interaction on user experiences in a mixed reality installation: The synthetic oracle. Presence 2009, 18, 277–285, doi:10.1162/pres.18.4.277.
[50]
Aarts, E.; Markopoulos, P.; de Ruyter, B. The Persuasiveness of Ambient Intelligence. In Security, Privacy, and Trust in Modern Data Management; Petkovic, M., Jonker, W., Eds.; Springer-Verlag: Berlin/Heidelberg, Germany, 2009; pp. 367–381.
[51]
Nixon, P.A.; Wagealla, W.; English, C.; Terzis, S. Security, privacy and trust issues in smart environments. In Smart Environments: Technologies, Protocols, and Applications; Cook, D.J., Das, S.K., Eds.; John Wiley & Sons: New York, NY, USA, 2005; pp. 249–270.
[52]
Punie, Y. A social and technological view of Ambient Intelligence in Everyday Life: What bends the trend? Technical Report EUR 20975 EN, 2003.
[53]
Moran, S.; Nakata, K. Analysing the factors affecting users in intelligent pervasive spaces. Intell. Buildings Int. 2010, 2, 57–71.
[54]
Forest, F.; Arhippainen, L. Social acceptance of proactive mobile services: Observing and anticipating cultural aspects by a sociology of user experience method. In Proceedings of the 2005 Joint Conference on Smart Objects and Ambient Intelligence: Innovative Context-Aware Services: Usages and Technologies; 2005; pp. 117–122.
[55]
Devaraj, S.; Easley, R.F.; Crant, J.M. How does personality matter? Relating the five-factor model to technology acceptance and use. Inf. Syst. Res. 2008, 19, 93–105, doi:10.1287/isre.1070.0153.
[56]
Lu, J.; Yao, J.E.; Yu, C.-S. Personal innovativeness, social influences and adoption of wireless Internet services via mobile technology. J. Strat.Inf. Syst. 2005, 14, 245–268, doi:10.1016/j.jsis.2005.07.003.
[57]
Rogers, E.M. Diffusion of innovations, 5th ed.; Free Press: New York, NY, USA, 2003.
[58]
Tennenhouse, D. Proactive Computing. Communications of the ACM 2000, 43, 43–50, doi:10.1145/332833.332837.
[59]
Dourish, P. Where the Action Is—The Foundations of Embodied Interaction; MIT Press: Cambridge, MA, 2001.
[60]
Fishkin, K.P. A taxonomy for and analysis of tangible interfaces. Pers. Ubiquitous Comput. 2004, 8, 347–358.
[61]
Shaer, O.; Hornecker, E. Tangible User Interfaces: Past, Present and Future Directions. Found. Trends Human-Comput. Interaction 2009, 3, 1–137, doi:10.1561/1100000026.
[62]
Mankoff, J.; Dey, A.; Hsieh, G.; Kientz, J.; Lederer, S.; Ames, M. Heuristic evaluation of ambient displays. In Proceedings of CHI’03, Ft. Lauderdale, FL, USA,, April 5-10; ACM Press, 2003; pp. 169–176.
[63]
Gabbard, J.L.; Swan, E. Usability engineering for augmented reality: employing user-based studies to inform design. IEEE Trans. Vis. Comput. Graphics 2008, 14, 513–524, doi:10.1109/TVCG.2008.24.
[64]
Nilsson, S. Augmentation in the wild: user centered development and evaluation of augmented reality applications. Doctoral Dissertation, Link？ping University, 2010.
[65]
Olsson, T.; Lagerstam, E.; K？rkk？inen, T.; V？？n？nen-Vainio-Mattila, K. Expected User Experience of Mobile Augmented Reality Services: A User Study in the Context of Shopping Centers. Pers. Ubiquitous Comput. 2011, doi:10.1007/s00779-011-0494-x.
[66]
Olsson, T. User expectations and experiences of mobile augmented reality services. Doctoral dissertation, Tampere University of Technology, 2012.
[67]
Hassenzahl, M.; Diefenbach, S.; G？ritz, A. Needs, affect, and interactive products—Facets of user experience. Interact. Comput. 2010, 22, 353–362, doi:10.1016/j.intcom.2010.04.002.
[68]
Law, EL-C.; Roto, V.; Hassenzahl, M.; Vermeeren, A.; Kort, J. Understanding, scoping and defining user experience: a survey approach. In Proceedings of CHI’09; ACM Press: NY, USA, 2009; pp. 719–728.
[69]
User experience white paper: Results from Dagstuhl seminar on demarcating user experience. 2011. Available online: http://www.allaboutux.org/files/UX-WhitePaper.pdf (accessed 17 December 2012).
[70]
Desmet, PMA.; Hekkert, P. Framework of product experience. Int. J. Design 2007, 1, 57–66.
[71]
Pine, B.J.; Gilmore, J.H. The experience economy; Harvard Business School Press: Boston, MA.
[72]
Kortum, P. HCI Beyond the GUI. Design for Haptic, Speech, Olfactory, and Other Nontraditional Interfaces; Morgan Kaufman Publishers, 2008; pp. 25–73.
[73]
Quek, D.; McNeill, R.; Bryll, S.; Duncan, X.; Ma, C.; Kirbas, K.E.; McCullough, R. Ansari, Multimodal human discourse: gesture and speech. ACM Trans. Comput.–Human Interac. 2002, 9, 171–193, doi:10.1145/568513.568514.
[74]
Cassell, J.; Sullivan, S.; Prevost, F. Embodied Conversational Agents; The MIT Press: Cambridge, MA, 2000.
[75]
Heikkinen, J.; Olsson, T.; V？？n？nen-Vainio-Mattila, K. Expectations for user experience in haptic communication with mobile devices. In Proceedings of MobileHCI’09; ACM Press: New York, NY, USA, 2010; pp. 1–10.
[76]
Africano, D.; Berg, S.; Lindbergh, K.; Lundholm, P.; Nilbrink, F.; Persson, A. Designing tangible interfaces for children's collaboration. In Proceedings of the CHI '04 extended abstracts on Human factors in computing systems; ACM Press: New York, NY, USA, 2004; pp. 853–868.
[77]
Ryokai, K.; Marti, S.; Ishii, H. I/O brush: drawing with everyday objects as ink. In Proceedings of the SIGCHI conference on Human factors in computing systems; ACM Press: New York, NY, USA, 2004; pp. 303–310.
[78]
Zuckerman, O.; Arida, S.; Resnick, M. Extending tangible interfaces for education: digital montessori-inspired manipulatives. In Proceedings of the SIGCHI conference on Human factors in computing systems (CHI’05); ACM Press: New York, NY, USA, 2005; pp. 859–868.
[79]
Hornecker, E.; Buur, J. Getting a grip on tangible interaction: a framework on physical space and social interaction. In Proceedings of the SIGCHI conference on Human Factors in computing systems; ACM Press: New York, NY, USA, 2006; pp. 437–446.
[80]
Hornecker, E. Interactions around a contextually embedded system. In Proceedings of the fourth international conference on tangibleembeddedand embodied interaction, Cambridge, MA, USA, 2010; pp. 169–176.
[81]
Ullmer, B.; Ishii, H. Emerging frameworks for tangible user interfaces. In Human–computer interaction in the new millennium, Carroll J. M.; Addison-Wesley: New York, USA, 2001; pp. 579–601.
[82]
Riekki, J.; Salminen, T.; Alak？rpp？, I. Requesting pervasive services by touching RFID tags. Pervasive Comput. 2006, 5, 40–46.
[83]
V？lkkynen, P.; Niemel？, M.; Tuomisto, T. Evaluating touching and pointing with a mobile terminal for physical browsing. In Proceedings of the 4th Nordic Conference on Human–Computer Interaction; ACM Press: New York, NY, USA, 2006; pp. 28–37.
[84]
Kaasinen, E.; Niemela, M.; Tuomisto, T.; Valkkynen, P.; Ermolov, V. Identifying user requirements for a mobile terminal centric ubiquitous computing architecture. System support for future mobile computing, FUMCA, 2006.
[85]
Kallinen, A. Studies on User Experience of Touch-Based Interaction with NFC Enabled Mobile Phones. Master’s thesis, Tampere University of Technology, 2010.
[86]
Isomursu, M. Tags in the city. PsychNol J. 2007, 6, 131–156.
[87]
Heikkinen, J. Expectations and User Experience in Haptic Mobile Communication. Master’s thesis, Tampere University of Technology, 2009.
[88]
Satyanarayanan, M. Pervasive computing: vision and challenges. IEEE Pers. Communic. 2001, 8, 10–17, doi:10.1109/98.943998.
Vallino, J. Interactive augmented reality. Doctoral Dissertation, University of Rochester, 1998.
[91]
Mackay, W.E. Augmenting Reality: A new paradigm for interacting with computers. La Recherche 1996, 3. (March 1996).
[92]
Remagnino, P.; Foresti, G.L. Ambient intelligence: a new multidiciplinary paradigm. IEEE Trans. Syst., Man, Cybernetics—Part A: Systems and Humans 2005, 35, 1, doi:10.1109/TSMCA.2004.838456.
[93]
Atzori, L.; Iera, A.; Morabito, G. The internet of things: a survey. Comput. Networks 2010, 54, 2787–2805, doi:10.1016/j.comnet.2010.05.010.
[94]
Kindberg, T. Implementing physical hyperlinks using ubiquitous identifier resolution. In Proceedings of Eleventh International Conference on World Wide Web, New York, NY, USA, 2002; ACM Press; pp. 191–199.
[95]
Olsson, T.; Iham？ki, P.; Lagerstam, E.; Vent？-Olkkonen, L.; V？？n？nen-Vainio-Mattila, K. User Expectations for Mobile Mixed Reality Services: an Initial User Study. In Proceedings of 4th European Conference for Cognitive Ergonomics; ACM Press: New York, NY, USA, 2009; pp. 177–184.
[96]
Kuznetsov, S.; Paulos, E. Rise of the Expert Amateur: DIY Projects, Communities, and Cultures. In Proceedings NordiCHI 2010; ACM Press: New York, NY, USA, 2010.
[97]
Roelands, M.; Claeys, L.; Godon, M.; Geerts, M.; Feki, M.A.; Trappeniers, L. Enabling the Masses to Become Creative in Smart Spaces - Orienting User Creation in the Internet of Things in the Context of the ITEA2 DiYSE Project. In Architecting the Internet of Things; Uckelmann, D., Harrison, M., Michahelles, F., Eds.; Springer-Verlag: Berlin/Heidelberg, Germany, 2011; pp. 37–64.
[98]
Kawsar, F.; Nakajima, T.; Fujinami, K. Deploy Spontaneously: Supporting End-Users in Building and Enhancing a Smart Home. In Proceedings of the International Conference on Ubiquitous Computing (UbiComp 2008); ACM: New York, NY, USA, 2008; 344, pp. 282–291.
[99]
Beckmann, C.; Consolvo, S.; LaMarca, A. Some assembly required: Supporting end-user sensor installation in domestic ubiquitous computing environments. In Proceedings of the International Conference on Ubiquitous Computing (UbiComp 2004); Springer-Verlag: Berlin/Heidelberg, Germany, 2004; 3205, pp. 107–124.
[100]
Rodden, T.; Benford, S. The evolution of buildings and implications for the design of ubiquitous domestic environments. In Proceedings of ACM Conference on Human Factors in Computing Systems (CHI 2003); ACM Press: Florida, USA, 2003; pp. 9–16.
[101]
Kym？l？inen, T.; Heinil？, J.; Tuomisto, T.; Plomp, J.; Urhemaa, T. Co-design Process and Evaluations of a Home Control System, in the Context of Intelligent Nursing Environment. In Proceedings of 8th International Conference on Intelligent Environments - IE2012.
[102]
Kym？l？inen, T.; Plomp, J. Life Story—Constructing a Memoir Writing Service. In Prodeedings of Academic Mindtrek; ACM Press: New York, NY, USA, 2012.
[103]
Luhtala, M.; Kym？l？inen, T.; Plomp, J. Designing a music performance space for persons with intellectual learning disabilities. In Proceedings of the International Conference on New Interfaces for Musical Expression, Oslo, Norway, 2011; pp. 429–432.
[104]
De Roeck, D.; Slegers, K.; Criel, J.; Godon, M.; Claeys, L.; Kilpi, K.; Jacobs, A. I would DiYSE for it! A manifesto for do-it-yourself internet-of-things creation. In Proceedings of the NordiCHI '12; ACM Press: New York, NY, USA, 2012.
[105]
Bakardjieva, M. Internet society: the Internet in everyday life; Sage: London, UK, 2005.
[106]
Mackay, W.E. Triggers and barriers to customizing software. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems 1991; ACM Press: New Yoek, NY, USA, 1991; pp. 153–160.
[107]
Gershenfeld, N.A. Fab:The coming revolution on your desktop - from personal computers to personal fabrication; Basic Books: New York, NY, USA, 2005.
[108]
Fischer, G.; Giaccardi, E.; Ye, Y.; Sutcliffe, A.G.; Mehandjiev, N. Meta-design: A manifesto for end-user development. Commun. ACM. 2004, 47, 33–37.
[109]
Smith, D.C.; Cypher, A.; Tessler, L. Novice programming comes of age. In Your Wish is My Command; Lieberman, H., Ed.; Morgan Kaufmann: San Francisco, CA, USA, 2001; pp. 7–20.
[110]
Dey, A.K.; Hamid, R.; Beckmann, C.; Li, I.; Hsu, D. a CAPpella: Programming by Demonstration of Context-Aware Applications. In Proceedings of ACM Conference on Human Factors in Computing Systems (CHI 2004); ACM Press: New York, USA, 2004; pp. 33–40.
[111]
Sohn, T.; Dey, A.K. iCAP: An Informal Tool for Interactive Prototyping of Context-Aware Applications. In Proceedings of ACM Conference on Human Factors in Computing Systems (CHI 2003); ACM Press: Florida, USA, 2003; pp. 974–975.
[112]
Kosta, E.; Pitk？nen, O.; Niemel？, M.; Kaasinen, E. Mobile-Centric Ambient Intelligence in Health- and Homecare—Anticipating Ethical and Legal Challenges. Sci. Eng. Ethics 2010, 16, 303–323, doi:10.1007/s11948-009-9150-5.
[113]
Rotter, P. A Framework for Assessing RFID System Security and Privacy Risks. IEEE Pervasive Comput. Archive 2008, 7, 70–77, doi:10.1109/MPRV.2008.22.
[114]
Bohn, J.; Coroam？, V.; Langheinrich, M.; Mattern, F.; Rohs, M. Living in a World of Smart Everyday Objects - Social, Economic, and Ethical Implications. Human Ecol. Risk Assessment 2004, 10, 763–785, doi:10.1080/10807030490513793.
