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Intelligent Service Integration LaboratoryInformation and Communications University

Korea

A Platform for Personalized Mobile u-A Platform for Personalized Mobile u-Health Application Design and Health Application Design and DevelopmentDevelopment

Minkyu Lee, Byeongwoo Kang, Dongsoo Han,Suntae Jung, Chulho Cho2008. 07. 08

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Agenda

• Introduction• Application Model• The MUSS Application Platform• Implementation• Evaluation• Conclusion • Discussion• Demonstration

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Introduction (1/4)

• Background– Mobile phones or devices are usual

• Cellular phones, smart phone, PDA, even laptops, …

– Many portable and small-sized bio-sensors are available

• PPG/ECG, Thermometer, Fat, Blood-sugar, …

– Many mobile u-Health Apps are also developed.• Stress phone, mobile blood-sugar checker, …

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Introduction (2/4)

• Motivation– Current applications are focused on general

patients

– Such general applications cannot reflects patient’s specific situations or environments

• For example, if a patient interested only in abdominal obesity, measuring fat of arm, leg, face are not necessary.

– Consequently, personalized applications are much preferred by the patients.

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Introduction (3/4)

• Motivation– In order to provide personalized applications for

each patient, there are some problems

• Employing more software developers is not feasible economically.

• Software developers do not have professional knowledge in medical or healthcare.

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Introduction (4/4)

• Our Approach– Instead of software developers, let medical

specialists can develop applications without software development knowledge with concerning personal situations.

– In order to realize it, we have developed an application platform (MUSS) and a development tool (workbench).

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Application Model

• This application model consists of 5 phases

• Each phase provides various activities.– (e.g., In Sensing phase, there are PPG sensing, Fat

sensing, Blood-sugar sensing, etc.)

SRI

BDI/STAI-S

SensingData Analyzer

DiseaseDecision

QuestionnaireData Analyzer

Direct Feedback

CSI

ContentsRecommendation

ProductsRecommendation

QuestionnaireData

ProcessingDiseaseTreatment

UserFeedback

Sensing

ECG/PPG

Thermometer

Fat Measurer

…

…

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The MUSS Application Platform (1/4)• MUSS (Mobile U-Health Service System)

– A platform for mobile u-health applications.– Consist of three layers

• Components layer– Component registration, discovery

• Process layer – Process design, execution, management

• Application layer– Application development, management, delivery

– XML-based message exchange– All components are Web Service (W3C).

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The MUSS Application Platform (2/4)

MUSS Platform Architecture

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The MUSS Application Platform (3/4)• Application Execution Model

ApplicationDesigner

ApplicationScenario Player(smart phone)

ApplicationScenario

generate

download/execute

XML

ApplicationScenario Player

(web)

execute

ApplicationDatabase

stored/retrieved

Medical Specialist

Patient(Smartphone user)

Patient(Desktop user)

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The MUSS Application Platform (4/4)

<app:application><app:title>Stress Application</app:title>...<app:process>

<app:activity><app:category>Sensing</app:category><app:type>PPGSensing</app:type><app:property>

<app:name>sensing-part</app:name><app:value>finger</app:value>

</app:property><app:property>

<app:name>time</app:name><app:value>120</app:value>

</app:property>...

</app:activity>...

</app:process>...

</app:application>

XML Representation of Application Scenario

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Implementation (1/7)• Platform Implementation

– Written in Java language– Axis2 Web service framework– Apache Tomcat Web server– MySQL database– WebVine BPM engine

• Client implementation– Samsung Blackjack smart phone– Windows mobile 5.0– Written in C# and C++ language

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Implementation (2/7)

• Our implementation includes– Service Components– Application Designer– Application Scenario Player (smart phone / web)

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Implementation (3/7)User Interfaces of Service Components

(a) Questionnaire composer (b) DCAP client

(c) Sensor manager (d) Web service registry

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Implementation (4/7)

User Interfaces of Application Designer

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Implementation (5/7)

User Interfaces of Application Scenario Player (Smart-phone version)

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Implementation (6/7)• Stress Application

(example)– Sensing

• Bluetooth PPG sensor

– Questionnaire• SRI (stress response inventory)

– Data Processing• learning-based stress diagnosis

framework (DCAP)

– Disease Treatment• Stress reduction contents

recommendation

– User Feedback• Weight values adjustment

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Implementation (7/7)

SensingActivities

QuestionnaireActivities

Data ProcessingActivities

Disease TreatmentActivities

Stress Application Scenario

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Evaluation

• Application Developer– Allows developing applications without

programming– Requires many components enough

• Application Scenario Player– Properly executed the application scenario– New Activity (for User-Interaction) is Required

Upgrade is Required

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Conclusion• We designed and implemented a platform

which enables medical specialists to develop personalized mobile u-health applications.

• The key idea is to provide higher level of abstractions to who are not capable of developing software.

• As a results, we confirmed that mobile u-health applications can be developed without programming on our platform.

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Discussion• Future works

– Lack support of sensors• Currently only two sensors (Fat measurer and PPG sensor)

– Lack of control-flows in application scenario• Conditional branching• iteration• Parallel composition

– Experiments in the field• Experimented only in the laboratory.• Further experiments should be take place with real

doctors and real patients.

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Demonstration

Demonstration of stress application development in our platform(3 min. 23 sec.)