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Context-AwareMultimediaComputingintheIntelligentHospitalScottMitchell,MarkD.Spiteri,JohnBates,GeorgeCoulourisLaboratoryforCommunicationsEngineeringUniversityofCambridge,TrumpingtonStreet,CambridgeCB21PZ,UK{rsm31,mds24,jb141,gfc22}@cam.ac.ukThispaperdescribesanapplicationmiddlewarethataddressestherequirementforimmediatehigh-qualitymultimediacommunicationsinenvironmentswhereusers’workpracticesexhibitalargedegreeofphysicalmobility.Amodernhospitalisonesuchenvironment,withdiverse,oftenmission-critical,communicationneedsthatarenotaddressedadequatelybyexistingsystems.Byintegratingamultimediaframeworkwithanevent-basednotificationsystem,wearedevelopingQoSDREAM,aplatformthatcanprovideseamless,context-sensitivecommunications,whichcanadapttousers’locationandevenfollowthemaround.ThispaperdescribeshowweareusingQoSDREAMtodesignwhatwetermourconceptofthe“IntelligentHospital”.Wealsointroduceausabilitystudythatwearecurrentlyengagedin.Thisisallowingustodeterminearealisticsetofcommunicationandinformationaccessrequirementswithinabusyhospitalenvironment.Weconcludebyillustratingaprototypeofthesystem.Weproposetoreplaceexistingintra-hospitalcommu-1.Introductionnicationswithasystemofdigitalaudioandvideostreamscoupledtoanevent-basedprogrammingThethesesofthispaperarethat,(1)inamodernor-mechanismforcontrolandnotification.The“Intelli-ganisationlikeahospitalwherestaffmovearoundgentHospital”willbewiredwithsensorstoenablewhilecarryingouttheirclinicalduties,thereisare-trackingthelocationofstaff,patientsandequipment.quirementforimmediatehigh-qualitymultimediaTerminalswilldeployedthroughoutthehospitalpro-communicationsessionsthatdonotrequirestafftovidingaccesstoaudio/videoconferencingandotherknowthepresentphysicallocationoftheircolleagues.informationsystems.Furthermore,(2)staffoftenrequireanawarenessofthelocation—andothercontext—oftheircolleagues,TheIntelligentHospitalisalocation-andcontext-theirpatients,andflexibleaccesstoinformationlikeawareapplication;thatis,thesystemknowsth