A Context Taxonomy Supporting Public System Design

Transcription

1 Faculty of Computer Science, Institute of Software and Multimedia Technology Junior Professorship in Software Engineering of Ubiquitous Systems A Context Taxonomy Supporting Public System Design Pisa, June 13th, 2011

2 Outline - Motivation - Structure of the Taxonomy - Context Taxonomy - Usage of Context Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 2 von 11

3 Motivation - Public systems use different services, devices and data - Ubiquitous technologies can integrate them and be used by all people Different types of usage which are affected by context - Context is important but hard to grasp - To model systems related to context is difficult A Context Taxonomy can be used to solve the problem of how to model ubiquitous context-sensitive systems (combined with e.g. Interaction Cases) Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 3 von 11

4 Structure of the Taxonomy Context: - information that characterizes situations or circumstances of an entity (person, place, object) (Dey & Abowd, 2000) - can be a combination of different context criteria/types/specifications Context criteria: - different hierarchically organized categories of context on an abstract level Context type: - sub-category of context criterion (from abstract criteria to more specific type) Context specification: - context types directly defined by values or value ranges Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 4 von 11

5 Example of a context hierarchy Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 5 von 11

6 Context Taxonomy - Overview Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 6 von 11

7 Context Taxonomy Interaction Context different types of devices/systems, different possibilities to interact System s interaction context - Input Context Criterion - Processing Context Criterion - Output Context Criterion User s interaction context - Perceptive Context Criterion - Cognitive Context Criterion - Acting Context Criterion Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 7 von 11

8 Context Taxonomy Socio-technical Context User-centered socio-technical context: - Sociological Context Criterion - Organizational Context Criterion System s socio-technical context: - Operational Context Criterion - Technical Context Criterion Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 8 von 11

9 Context Taxonomy Other Context Physical context - Temperature, humidity, ambient noise level etc. Task context - Depending on the task the user wants to fulfill Spatial context - location-based - Describes movements or special locations Temporal context - Absolute and relative time affect e.g. presentation (Schlegel & Keller, 2011) Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 9 von 11

10 Usage of Context Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 10 von 11

11 Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 11 von 11

12 References Dey, A. K. and Abowd, G.D. Towards a better understanding of context and context-awareness. In: Computer Human Interaction 2000 Workshop on the What, Who, Where, When, Why and How of Context-Awareness (2000). Schlegel, T. and Keller, C. Model-based ubiquitous interaction concepts and contexts in public systems. (2011, accepted). Modiquitous Workshop A Context Taxonomy Supporting Public Display Design Dipl.-Medieninf. Romina Kühn Folie 12 von 11