research:context
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research:context [2006/06/30 17:38] – jorge | research:context [2006/07/01 21:51] – jorge | ||
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- | ====== Role-Based Ambient Communications ====== | + | ===== Context-Dependent Behaviour Adaptations |
+ | ==== Motivation ==== | ||
- | == Motivation == | + | Within the domain of pervasive computing, context-awareness has commonly been defined as the ability of an application to adapt itself to its dynamic environment. The context of an application is defined as any information or service in the application' |
- | Within | + | Our observation is that in an interaction between two entities, |
- | In an interaction between two entities, however, the behaviour of the message receiver does not only depend on the context itself, but also on the context of the sender. | + | We claim that in order to deal with context-dependent communications |
- | In order to deal with context-dependent communications, | + | * **Dynamic Context Adaptation**: |
- | * **Dynamic | + | * **Dynamic |
- | * **Dynamic Behaviour Composition**: The resulting behaviour | + | * **Context Passing Mechanism**: It is not only the context of one device that determines its behavior, but also the context of other devices potentially play an important role. In the case of context-dependent communications, |
- | * **Context Passing Mechanism**: | + | ==== Design ==== |
- | == Design == | + | At our lab, we are currently exploring different language constructs for the development of context-aware applications. Here we present one of thes constructs called Split Objects (Bardou et al, ECOOP 1996). In such a model, application entities are composed of roles (known as viewpoints) which represent the different behaviours the entity can adopt. A role is a particular point of view on an entity that has an identification and a partial definition of that entity. The model' |
- | Ambient references unify two concepts: they are both a peer-to-peer discovery channel //and// an asynchronous communication channel to a remote object. | + | {{ rolemodel02.jpg? |
- | == Ongoing | + | The problem with the split objects model is that the message sender must know before hand which are the roles a receiver could take. In dynamic environments like mobile open networks, this acknowledgment is practically impossible |
- | - Composition of context-dependent application behaviours using prototype-based solutions (delegation hierarchies, | + | ==== Ongoing |
- | - Context-dependent adaptations of behaviour using role-based models. | + | |
- | - Rule-based systems for context reasoning | + | |
- | - Role-based communications. | + | |
- | - Combining actor and role models for the development of context-dependent applications. | + | |
- | - Ad-hoc and intentional actor grouping. | + | |
- | - Intra and Inter actor layers for context-dependent adaptations. | + | |
- | - Dynamic scope for context-dependent communications. | + | |
- | == Further Reading == | + | These are the different research topics we have identified so far: |
+ | |||
+ | * Composition of context-dependent application behaviours using prototype-based solutions (delegation hierarchies, | ||
+ | |||
+ | * Context-dependent adaptations of behaviour using role-based models. | ||
+ | |||
+ | * Rule-based systems for context reasoning and role selection. | ||
+ | |||
+ | * Combining actor and role models for the development of context-dependent applications. | ||
+ | |||
+ | * Ad-hoc and intentional actor grouping. | ||
+ | |||
+ | * Intra and Inter actor layers for context-dependent adaptations. | ||
+ | |||
+ | * Dynamic scope for context-dependent communications. | ||
+ | |||
+ | ==== Further Reading | ||
**A Role-Based Implementation of Context-Dependent Communications Using Split Objects**. Jorge Vallejos, Peter Ebraert, Brecht Desmet. In " | **A Role-Based Implementation of Context-Dependent Communications Using Split Objects**. Jorge Vallejos, Peter Ebraert, Brecht Desmet. In " |
research/context.txt · Last modified: 2009/11/30 16:55 by dharnie