12 September 201012 September 2010 11

Continua Health Alliance:Continua Health Alliance:Architectural Overview & Architectural Overview &

Comparison with 2009 Phoenix Comparison with 2009 Phoenix ArchitectureArchitecture

Christopher J AdamsChristopher J Adams

Phoenix ProjectPhoenix Project

http://www.phoenix.tc-ieee.org/http://www.phoenix.tc-ieee.org/

adamscj@ieee.orgadamscj@ieee.org

© 2010 Christopher J. Adams

This work is licensed under the Creative Commons Attribution 3.0 Unported License.To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ or send a letter to

Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.

12 September 201012 September 2010 22

Table of ContentsTable of Contents

Phoenix BackgroundPhoenix Background– Vision & MissionVision & Mission– Architectural RequirementsArchitectural Requirements– Architectural Model 2009Architectural Model 2009

Continua Health AllianceContinua Health Alliance– Vision & MissionVision & Mission– Use CasesUse Cases– Architectural ModelArchitectural Model– Current “Eco-System”Current “Eco-System”

ConclusionsConclusions

12 September 201012 September 2010 33

Phoenix VisionPhoenix Vision

MeasurementMeasurement– Blood pressureBlood pressure– Heart rateHeart rate

RepetitiveRepetitive Around-the-clockAround-the-clock Week or longerWeek or longer

Analysis toolsAnalysis tools– Self careSelf care– DiagnosisDiagnosis– PreventionPrevention

& Pre-habilitation& Pre-habilitation– TreatmentTreatment

& Re-habilitation& Re-habilitation

Long termLong term Massive scaleMassive scale

12 September 201012 September 2010 44

Project MissionProject Mission

Develop ambulatory blood pressure monitorDevelop ambulatory blood pressure monitor– InexpensiveInexpensive– UnobtrusiveUnobtrusive– Easy to useEasy to use– Collects a week of blood pressure measurementsCollects a week of blood pressure measurements

Develop softwareDevelop software– Chronobiological analysis of collected blood pressure Chronobiological analysis of collected blood pressure

measurementsmeasurements

12 September 201012 September 2010 55

Architectural RequirementsArchitectural Requirements InexpensiveInexpensive

– Open sourceOpen source– Free intellectual property, volunteer laborFree intellectual property, volunteer labor

Highly decomposedHighly decomposed– Consequence of open sourceConsequence of open source– Each component quickly engineeredEach component quickly engineered

by very small team (usually one person)by very small team (usually one person) Extensible -- highly recomposableExtensible -- highly recomposable

– Consequence of multiple actors, vaguely organizedConsequence of multiple actors, vaguely organized– Evolving user classes, usage scenarios, environmentsEvolving user classes, usage scenarios, environments– Highly re-usable componentsHighly re-usable components

12 September 201012 September 2010 66

Architectural RequirementsArchitectural Requirements

ScalableScalable– Ready to cope with volume increasesReady to cope with volume increases

WearersWearers Acquired dataAcquired data Analysis requestsAnalysis requests

Security & PrivacySecurity & Privacy– Principles:Principles:

Wearer owns measurements of the wearer’s bodyWearer owns measurements of the wearer’s body Caregivers are custodiansCaregivers are custodians Control belongs to the wearerControl belongs to the wearer

– Manage person (patient) identity externallyManage person (patient) identity externally

12 September 201012 September 2010 77

Phoenix 2009Phoenix 2009Architectural LayersArchitectural Layers

ActorsActors ApplicationsApplications Presentation ServicesPresentation Services Data AcquisitionData Acquisition Modeling and ProfilingModeling and Profiling Person Identity ManagementPerson Identity Management Analysis and ReportingAnalysis and Reporting Service BusService Bus

12 September 201012 September 2010 88

Phoenix Architectural Model 2009Phoenix Architectural Model 2009

12 September 201012 September 2010 99

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

All slides taken from

http://www.continuaalliance.org/static/cms_workspace/Continua_Overview_Presentation_v19.4.pdf

Objective ofContinua (telehealth)is broader than that of

Phoenix (ABPM with chronobiological services)

12 September 201012 September 2010 1010

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 1111

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

High degree of alignment with Phoenix

12 September 201012 September 2010 1212

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

Consistent with,though broader than, Phoenix

12 September 201012 September 2010 1313

Continua Use CasesContinua Use Cases

http://www.continuaalliance.org/connected-health-vision/disease-management.html

http://www.continuaalliance.org/connected-health-vision/aging-independently.html

http://www.continuaalliance.org/connected-health-vision/health-and-wellness.html

12 September 201012 September 2010 1414

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 1515

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 1616

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 1717

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 1818

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

Phoenix

Phoenix Phoenix

Architectural ModelArchitectural Model

12 September 201012 September 2010 1919

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

Data Protocols

Transport Protocols

12 September 201012 September 2010 2020

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 2121

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

Current Eco-SystemCurrent Eco-System

12 September 201012 September 2010 2222

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 2323

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 2424

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 2525

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

12 September 201012 September 2010 2626

ConclusionsConclusions

ConCon– Cost of Continua membership is prohibitive to PhoenixCost of Continua membership is prohibitive to Phoenix– Concerned that Continua license would infringe on Concerned that Continua license would infringe on

Phoenix mission and licensePhoenix mission and license Further investigation neededFurther investigation needed

ProPro– Continua sufficiently supported by industry to justify Continua sufficiently supported by industry to justify

Phoenix’s adoption of Continua standardsPhoenix’s adoption of Continua standards Would improve chance of industry adoption of PhoenixWould improve chance of industry adoption of Phoenix

12 September 201012 September 2010 2727

RecommendationsRecommendations

Retrofit architecture model with layers forRetrofit architecture model with layers for– Personal devicePersonal device– Aggregation managerAggregation manager– Telehealth service centerTelehealth service center– Health recordsHealth records

Investigate ISO/IEEE 11073 Personal Health Data Investigate ISO/IEEE 11073 Personal Health Data StandardsStandards– Consider wrappers for 11073 protocol stackConsider wrappers for 11073 protocol stack– Consider adoption of standards outrightConsider adoption of standards outright

May be issue of when to adoptMay be issue of when to adopt