Foundations for a Platform to Develop Context-Aware Systems by Domain Experts
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Foundations for a Platform to Develop Context-Aware Systems by Domain Experts
- 1. Foundations for a Platform to Develop ContextAware Systems by Domain Experts David Martin, Diego Lopez, Carlos Lamsfus, Aurkene Alzua Cooperative Research Centre in Tourism – CICtourGUNE (Spain) david.martin@tourgune.org
- 2. • Outline • Motivation • Context • Situation • Context Cloud • Conclusions
- 3. • Outline • Motivation • Context • Situation • Context Cloud • Conclusions
- 5. Motivation • Ubiquitous Computing: 2012 How can we personalize and adapt these systems to people’s needs in Ubicomp environments?
- 6. Motivation • Ubiquitous Computing: 2012 CONTEXT!!
- 7. Motivation • The development of context-aware systems is difficult • Technical challenges • Context data has to be… • Obtained (distributed, heterogeneous) • Processed (data model) • Managed (inference->situations) • The system has to be adapted to the identified situation • Definition of situations • Which are the relevant situations? • Where is the needed context information? • Which are the desired behaviors of the system? Dependent on the application domain Manufacturing Tourism Automotive Industry …
- 8. Motivation • We need… • The collaboration among Domain Experts and Programmers in the development process. They can better identify the situations of users that can be relevant for the system to be developed. • Toolkits that can make easier the development of Context-Aware Systems, even for people that do not have programming skills
- 9. • Outline • Motivation • Context • Situation • Context Cloud • Conclusions
- 10. Context is… … “any information that can be obtained and processed by a hardware or a software system, in order to identify the situation of an entity and adapt the system’s behaviour to that situation”.
- 11. Context Entities Living being Place Object Situations Sleeping Pollution At home Raining Software Driving a car Cooking Hardware Information Weather Date Time Speed Location QR Code
- 12. • Outline • Motivation • Context • Situation • Context Cloud • Conclusions
- 13. A situation… … is the state of a subset of the available context information at a certain region in space and at a concrete interval in time, identified by a name
- 14. Situation is… Waiting for the bus Bus stop Going out on a rainy day Hotel room
- 15. • Outline • Motivation • Context • Situation • Context Cloud • Conclusions
- 16. Context Cloud End user CONTEXT-AWARE SYSTEM Waiting for the bus Going out on a rainy day Programmer Warm place Programmer CONTEXT CLOUD Domain expert Bus stop Hotel room Beach
- 17. Context Cloud • A web platform for the collaborative development of Context-Aware Systems Programmer Domain expert • Technical overview of the system • Implementation of the final service using the generated outputs to adapt the behavior of the system • Knowledge about the application domain • Situations
- 18. Context Cloud: functionalities End user CONTEXT-AWARE SYSTEM Programmer Walking Working Sleeping Hotel CONTEXT CLOUD Programmer Bus stop Active Provider Passive Provider Providers Domain expert Rule1 GET Rule 2 XML POST Programmer Weather service Smartphone
- 19. • Outline • Motivation • Context • Situation • Context Cloud • Conclusions
- 20. Conclusions • A Platform to Develop Context-Aware Systems • Improvements over existing approaches • Free data model • Support for mobility (GIS) • Extensible (rules, data model, sources,…) • Web development environment (involvement of DE)
- 22. Conclusions • Evaluation of the platform • Carried out in pairs composed by a Domain Expert and a Programmer • The participants (12) were given a document where four different situations were described. • The 83% find that learning how to use the platform is easy. • The 83% find that the interaction with the platform is clear. • The 83% of the participants state that it would be easy for them to become skillful at using the platform. • The 100% state that using the platform in their jobs would enable them to develop context-aware systems more quickly and that it would make it easier to develop context-aware systems.