1. page 1 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Stefan Arbanowski, Olaf Droegehorn, Wolfgang Kellerer, Herma van Kranenburg, Kimmo Raatikainen, Stefan Steglich WWRF13, Jeju, Korea, Feb. 2-3, 2005 WWRF Briefing WG2-br2 Next Generation Mobile Service Features STRATEGIC VISION on future research directions in the wireless field

2. page 2 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Terminals Reference Model Devices and Communication End Systems Service Platform Generic Service Elements for all layers Service Semantic Wired or wireless Networks IP based Communication Subsystem Business Model Networks IP Transport Layer Network Control & Management Layer Service Support Layer Service Execution Layer Application Support Layer Service Bundling Service Control Service Discovery Service Creation Environment Monitoring Service Deployment Conflict Resolution Ambient Awareness Personalization Adaptation User Model & Appl. Scenarios Communication Space (Contexts & Objects)

3. page 3 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Terminals Reference Model Networks IP Transport Layer Network Control & Management Layer Service Support Layer Service Execution Layer Application Support Layer Service Bundling Service Control Service Discovery Service Creation Environment Monitoring Service Deployment Conflict Resolution Ambient Awareness Personalization Adaptation User Model & Appl. Scenarios Service Features

4. page 4 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Personalization The Personalization feature provides information to tailor services to the individual preferences of the users in a given context to -Ease service selection and usage -Increase the perception of the user's communication space Personalized services automatically reflect user needs in a specific situation (context)

5. page 5 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea General Personalization Model Approach Preferences Management Personalization Function Service A Service B Service C Interface Database

6. page 6 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Personalization Factors Acquisition of user preferences (interactively or automated) Storage of preferences in user profiles Profile exchange Description of the user context Preference-based activation of the user context Security and privacy

7. page 7 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Systems Used for Learning User Preferences Preferences are learned by the observation of user behavior in certain contexts according to predefined rules Recommendation systems: Exploit human feed back to learn preferences Computers Assisted Self Explication: the user specifies preferences online The actors recommendations are compared and combined into groups with similar profiles

8. page 8 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea User Profiles Storage of preferences in user profiles Information model describing User Preferences -user specific information (name, address, …) and -user specific preferences State of the Art description languages include -Composite Capabilities/Preferences Profile (CC/PP) and -UserAgent Profile (UAProf): CC/PP vocabulary for terminals Profile selection and activation -There is always (exactly) one active profile per user -Selection of the active profile according to the “activation context”

9. page 9 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea User Context

10. page 10 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Ontology-based User Profile and Context Description Semantic information helps to understand relationships between objects (compare profiles, default preferences, technical abstraction) RDFS HTML XHTMLRDF DAML+OILOWL DAML-SWSMF DAML-SDAML Services DAML+OIL DARPA Agent Markup Language, Ontology Inference Layer WSMFWeb Service Modeling Framework OWLWeb Ontology Language RDFSRDF Schema RDFResource Description Framework XML

11. page 11 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Ambient Awareness I-centric systems -Services to be tailored to user preferences and user contexts (personalization) -Services automatically adapt to changes in the context (adaptation) The Ambient Awareness feature supports the collection and management of context information in the communication space (ambient information) -Acquisition of ambient information -Interpretation of ambient information

12. page 12 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Ambient Awareness Factors Acquisition of ambient information -Sensing of the user context (sensors, HMI) -User context, physical context, time, computing context Exchange of ambient information Interpretation of ambient information Provision of the ambient information to services and portal components

13. page 13 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Sensors Capturing Ambient Information Sensors

14. page 14 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Acquisition of Ambient Information Ambient Information Server Ambient Information Store Interpreter Service Sensor Network Interpreter User Interaction Direct Information Gathering Indirect Information Gathering Provisioning/Usage of Ambient Information

15. page 15 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Provisioning Chain for Ambient Information

16. page 16 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Adaptability The Adaptability feature provides support to application to be able to adapt to changes in the context -Based on information (profiles, preferences, ambient information) provided by the personalization and ambient awareness features -Typical situations: substantial change in characteristics of connectivity entering into a new service domain changing terminal device in the service session

17. page 17 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Adaptability Factors Media adaptation -Text-to-speech, transcoding Content adaptation -Presentation, ordering, ading/deleting information Service behavior adaptation Adaptability has to be reactive and proactive

18. page 18 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Service Adaptation Ambient Information Server Terminal Service Adaptation Function Service Request Respond Request Respond AB Access Network Profile and Preferences Management System Svc Desc Delivery Context Capabilities of the access mechanism Ambient information User preferences

19. page 19 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Adaptability Enablers Environment monitoring Event notification Distributed application framework (adaptation environment) Perception service (store and retrieve knowledge) Modeling services (model builder, combiner) Ontology service Semantic matching engine Mobile distributed information base (reliable, stable, sync.) Detect changes and notify Component discovery, replacement, relocation, combination, configuration Understanding, matching and using various models

20. page 20 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Summary Three main service features have been identified to support B3G services and applications -Personalization -Ambient Awareness -Adaptation This WWRF Briefing presents these features and describes their main enabling functionalities (called factors) needed to realize these features A detailed description of personalization, ambient awareness and adaptation is given in three WG2 White Papers with these same titles

21. page 21 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Credits to All contributors to the WG2 White Papers ‘Personalization‘, ‘Ambient Awareness‘, ‘Adaptation‘

22. page 22 WWRF Briefing WG2-br2 · Kellerer/Arbanowski · wg2@wireless-world-research.org · 03/2005 · WWRF13, Korea Contact See http://www.wireless-world-research.org/ See http://wg2.ww-rf.org/ mailto: arbanowski@fokus.fraunhofer.de mailto: kellerer@docomolab-euro.com