Paper–Based Medical Ubiquitous Computing
نویسندگان
چکیده
We present a new approach to clinical workplace computerization that departs from the window–based user–interface paradigm. NOSTOS is an experimental computer–augmented work environment designed to support data capture and teamwork in an emergency room. NOSTOS combines multiple technologies, such as digital pens, walk–up displays, headsets, a smart desk, and sensors to enhance an existing paper–based practice with computer power. The physical interfaces allow clinicians to retain mobile paper–based collaborative routines and still benefit from computer technology. The requirements for the system were elicited from situated workplace studies. THE NOSTOS ENVIRONMENT NOSTOS is an experimental ubiquitous computing healthcare environment. Figure 1 shows part of NOSTOS. Essentially, we replaced the traditional GUI of an exiting Computer-Based Record System with a number of physical interfaces. The idea was to develop a hybrid system that maintains dual representations (i.e., digital and physical representations) of the same document, folder, and sticker note. Computer augmentation of the previously established routines was achieved by combining digital paper technology, walk–up displays, headsets, a smart desk, and sensor technology in a distributed software architecture to digitize the ordinary paper forms, folders, and desks. Digital Paper Interface. A fundamental feature of NOSTOS is the digital paper interface. The clinicians use a digital pen and special paper forms (i.e., the Anoto system) to record medical data directly into the computer domain and control system functions. Moreover, the digital pen has a Bluetooth transceiver that transmits wirelessly the pen strokes to the computer domain for processing. To interact with the system, users employ the digital pen to write and check boxes on the paper forms (Figure 2). The user must verify that the input has been correctly interpreted by the system to maintain information consistency between the electronic and physical documents. NOSTOS provides feedback for this purpose in two ways: through walk–up displays in the physical environment and by radio–enabled headsets. For example, users walk–up to a nearby display and can verify that information about a medication written on the form has been correctly converted to text by NOSTOS. FIGURE 1. Users interact with NOSTOS by means of digital pens and special paper applications. Walk–up displays and mobile headsets provide feedback from the system. FIGURE 2. Part of an experimental paper–based interface with special paper widgets. REFERENCES1. Bång M, Hagdahl A, Eriksson H, Timpka T. Groupware for Case Management and Inter–OrganizationalCollaboration: The Virtual Rehabilitation Team. In: Patel VL et. al (Eds.) MEDINFO 2001. Amsterdam: IOSPress 2001.2. Anoto AB, 2002.3. Patel VL, Kushniruk AW. Interface design for health care environments: The role of cognitive science. In: Proc.of the 1998 AMIA Fall Symposium; 1998 November 7–11; Orlando, FL.4. Heath, C, Luff, P. Technology in Action. Cambridge (MA): Cambridge University Press; 2000.5. Norman D. Cognitive Artifacts. In: Carroll JM, ed. Designing Interaction: Psychology at the Human–ComputerInterface. Cambridge (MA): Cambridge University Press, 1991:17–38. 6. Sellen A, Harper R. The Myth of the Paperless Office. Cambridge (MA): MIT Press; 2001.7. Dick RS, Steen EB. The Computer–Based Patient Record: An Essential Technology for Health Care. WashingtonDC: National Academy Press; 1991.8. Bång M, Timpka T. Cognitive Tools in Medical Teamwork: The Spatial Arrangement of Patient Records. MethInf Med. In Press 2003.9. Weiser, M. The Computer for the 21st Century. Sci Am 1991;265(3):94–104.10. Poon AD, Fagan LM, Shortliffe EH. The PEN–Ivory Project: Exploring User–interface Design for the Selectionof Items from Large Controlled Vocabularies of Medicine. JAMIA 1996;3(2): 168–183.11. Wellner P, Mackay W, Gold, R. Computer Augmented Environments: Back to the Real World. Com of the ACM1993;36(7):24–26.12. McGee D, Cohen P, Wu L. Something from nothing: Augmenting a paper–based work practice with multimodalinteraction. In: Proc. of the Designing Augmented Reality Environments Conference 2000 (DARE'00) April 12–14; Helsingor, Denmark. Copenhagen: ACM Press; 2000. p. 71–8013. Mackay WE, Fayard A–L. (1999) Designing Interactive Paper: Lessons from three Augmented Reality Projects.In: Proc. of International Workshop on Augmented Reality (IWAR’98). Natick (MA): A K Peters Ltd; 1999.14. Wellner P. Interacting with paper on the DigitalDesk. Com of the ACM 1993;36(7):86–96.15. Want RK, Fishkin K, Gujar A, Harrison B. Bridging physical and virtual worlds with electronic tags. In: Proc. ofHuman Factors and Computing Systems (CHI’99), Pittsburgh, PA;ACM Press 1999.16. Ullmer B, Ishii, H. Emerging Frameworks for Tangible User Interfaces. IBM Systems Journal 2000;39(3–4):915–931.17. Fitzmaurice G. Graspable User Interfaces. [Dissertation]. University of Toronto; 1996.18. Ullmer B, Ishii, Glas D. mediaBlocks: Physical Containers, Transports, and Controls for Online Media. In: Proc.of Computer Graphics (SIGGRAPH'98) July 19–24, 1998, pp. 379–386.19. Jacob R, Ishii H, Pangaro G, Patten J. A Tangible Interface for Organizing Information Using a Grid. In: Proc. ofHuman Factors in Computing Systems Conference; 2001; ACM Press; 2002. p. 339–346.20. Hong J, Landay J, "SATIN: A Toolkit for Informal Ink–based Applications." In: ACM Symposium on UserInterface Software and Technology (UIST 2000). CHI Letters 2000;2(2);63–72.
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