A WEB PLATFORM AND A METHODOLOGY TO
PROMOTE A COLLABORATIVE DEVELOPMENT
OF CONTEXT-AWARE SYSTEMS
David Martín, Carlos Lams...
• Outline
• Motivation
• Related work
• Theoretical framework
• Context Cloud

• Situation-Driven Development
• Conclusion...
• Outline
• Motivation

• Related work
• Theoretical framework
• Context Cloud

• Situation-Driven Development
• Conclusio...
Motivation

How can we personalize information and services to
people’s needs in mobile environments?
Motivation

CONTEXT!!
Motivation
• The development of context-aware systems is difficult
• Technical challenges
• Context data has to be…
• Obta...
Motivation
• We need…
• The collaboration among Domain Experts and

Programmers in the development process. They can bette...
• Outline
• Motivation
• Related work

• Theoretical framework
• Context Cloud

• Situation-Driven Development
• Conclusio...
Related work
• Software development toolkits

• Drawbacks
• User’s mobility not supported - Geographic Information System ...
Related work
• Development methodologies

• Drawbacks
• General development methodologies
• Designed for programmers
• Outline
• Motivation
• Related work
• Theoretical framework

• Context Cloud

• Situation-Driven Development
• Conclusio...
Theoretical framework
• Context is…

“… any information that can be obtained and
processed by a hardware or a software sys...
Theoretical framework
• A situation is…

… the state of a subset of the available context
information at a certain region ...
• Outline
• Motivation
• Related work
• Theoretical framework
• Context Cloud

• Situation-Driven Development
• Conclusion...
Context Cloud
End user

CONTEXT-AWARE
SYSTEM

Waiting for
the bus

Going out on
a rainy day

Programmer

Warm place

Progr...
Context Cloud
• A web platform for the collaborative development of

Context-Aware Systems

Programmer

Domain expert

• T...
Context Cloud: functionalities
End user

CONTEXT-AWARE
SYSTEM

Programmer

Walking
Working
Sleeping
Room

CONTEXT CLOUD

P...
Context Cloud: screenshots
Context Cloud: screenshots
• Outline
• Motivation
• Related work
• Theoretical framework
• Context Cloud
• Situation-Driven Development
• Conclusions
Situation-Driven Development
• Analysis
Situation-Driven Development
• Configuration
Situation-Driven Development
• Development

Situation
information

CONTEXT CLOUD

Inputs

Outputs
Situation-Driven Development
• Development
• Outline
• Motivation
• Related work
• Theoretical framework
• Context Cloud
• Situation-Driven Development
• Conclusions
Conclusions
• Context Cloud
• Improvements over existing approaches
•
•
•
•

Free data model based on entities
Support for...
Conclusions
• Evaluation
• Carried out in pairs composed by a Domain Expert and
a Programmer.
• The participants (12) were...
Conclusions
• Evaluation
• Some results
• 91.7% find that learning how to use the platform and the methodology is

•
•
•
•...
Thank You!!
davidmartin@tourgune.org
http://vimeo.com/contextcloud
www.tourgune.org
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A web platform and a methodology to promote a collaborative development of context-aware systems

  1. 1. A WEB PLATFORM AND A METHODOLOGY TO PROMOTE A COLLABORATIVE DEVELOPMENT OF CONTEXT-AWARE SYSTEMS David Martín, Carlos Lamsfus, Aurkene Alzua, Diego López-de-Ipiña davidmartin@tourgune.org
  2. 2. • Outline • Motivation • Related work • Theoretical framework • Context Cloud • Situation-Driven Development • Conclusions
  3. 3. • Outline • Motivation • Related work • Theoretical framework • Context Cloud • Situation-Driven Development • Conclusions
  4. 4. Motivation How can we personalize information and services to people’s needs in mobile environments?
  5. 5. Motivation CONTEXT!!
  6. 6. 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 Health care …
  7. 7. 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 ContextAware Systems, even for people that do not have programming skills • Development methodologies to guide the development process, focused in the collaboration among Domain Experts and Programmers
  8. 8. • Outline • Motivation • Related work • Theoretical framework • Context Cloud • Situation-Driven Development • Conclusions
  9. 9. Related work • Software development toolkits • Drawbacks • User’s mobility not supported - Geographic Information System (GIS) • Hardly extensible • Low-level APIs for skilled programmers
  10. 10. Related work • Development methodologies • Drawbacks • General development methodologies • Designed for programmers
  11. 11. • Outline • Motivation • Related work • Theoretical framework • Context Cloud • Situation-Driven Development • Conclusions
  12. 12. Theoretical framework • Context is… “… any information that can be obtained and processed by a hardware or a software system, {sleeping, at home, …} {living being, place, object} in order to identify the situation of an entity and adapt the system’s behaviour to that situation”.
  13. 13. Theoretical framework • 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”. Waiting for the bus Bus stop Going out on a rainy day Hotel room
  14. 14. • Outline • Motivation • Related work • Theoretical framework • Context Cloud • Situation-Driven Development • Conclusions
  15. 15. 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
  16. 16. 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
  17. 17. Context Cloud: functionalities End user CONTEXT-AWARE SYSTEM Programmer Walking Working Sleeping Room CONTEXT CLOUD Programmer Bus stop Active Provider Passive Provider Providers Rule1 GET Rule 2 XML POST Programmer Weather service Smartphone Domain expert
  18. 18. Context Cloud: screenshots
  19. 19. Context Cloud: screenshots
  20. 20. • Outline • Motivation • Related work • Theoretical framework • Context Cloud • Situation-Driven Development • Conclusions
  21. 21. Situation-Driven Development • Analysis
  22. 22. Situation-Driven Development • Configuration
  23. 23. Situation-Driven Development • Development Situation information CONTEXT CLOUD Inputs Outputs
  24. 24. Situation-Driven Development • Development
  25. 25. • Outline • Motivation • Related work • Theoretical framework • Context Cloud • Situation-Driven Development • Conclusions
  26. 26. Conclusions • Context Cloud • Improvements over existing approaches • • • • Free data model based on entities Support for mobility (GIS) Extensible at runtime (rules, data model, sources,…) Web development environment (involvement of DE) • Situation-Driven Development • Improvements over existing approaches • A methodology specifically designed for the development of context-aware systems • Promotes the collaboration between domain experts and programmers
  27. 27. Conclusions • Evaluation • 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. • They had to use the methodology and configure the platform to detect the situations. • After the evaluation, they had to fill out a questionnaire.
  28. 28. Conclusions • Evaluation • Some results • 91.7% find that learning how to use the platform and the methodology is • • • • • easy. 91.7% state that using Context Cloud would enable them to develop context-aware systems more quickly and easier. 83.3% find that Context Cloud eases the collaborative work. 83.3% of the non-programmers state that it would be easy for them to become skilful at using the platform. 100% state that the methodology is useful to work with Context Cloud and to do a collaborative work. 91.7% of the participants would recommend other users to use the platform.
  29. 29. Thank You!! davidmartin@tourgune.org http://vimeo.com/contextcloud www.tourgune.org

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