The need for organizations to operate in changing environments is addressed by proposing an approach that integrates organizational development with information system (IS) development taking into account changes in the application context of the solution – Capability Driven Development (CDD). A meta-model for representing business and IS designs consisting of goals, key performance indicators,...

Besides technological challenges, there is a growing interest on how pervasive computing can deeply affect the way in which people interact and accomplish collaborative tasks. Context awareness plays a crucial role for communities, where the degree of participation of a single user dynamically changes in relation to the distance from the place where practices occur and in relation with the abil...

We present an interface for 3D object manipulation in which standard transformation tools are replaced with transient 3D widgets invoked by sketching context-dependent strokes. The widgets are automatically aligned to axes and planes determined by the user’s stroke. Sketched pivot-points further expand the interaction vocabulary. Using gestural commands, these basic elements can be assembled in...

We are concerned with the problem of defining a complex, hybrid, agent based discrete system in a modular way. The modularity results from looking at the system from a number of different perspectives, each dealing with a specific aspect of the system. As a solution a synchronization operator is proposed which glues agent aware systems on shared agents and transitions. The construction turns ou...

Over the last decade, there is an increasing trend in the use of more and more mobile navigation devices. In order to make mobile navigation more intelligent, issues such as location and context awareness need to be addressed to offer location-based navigation services. For example, one might think of a scenario of a large commercial center where a customer with some mobile device in hand wishe...

This study assesses reactions to a wiki enhanced with context-aware features that enable users to learn about people, places, and events in their proximity. In a physically compact enclave such as the urban university in which this wiki is being implemented, context-aware applications can support a hybrid community in which individuals develop and sustain physical and virtual social ties. Parti...

Research is taking place to find effective algorithms for content-based image representation and description. There is a substantial amount of algorithms available that use visual features (color, shape, texture). Shape feature has attracted much attention from researchers that there are many shape representation and description algorithms in literature. These shape image representation and des...

Physical location of users in a multi-agent system is crucial in order to provide them with context -awareness services. A context -aware system can answer to the requests of its users in a more effective way, being able of consider the conditioners that affect them. In this paper we focus in how to provide a FIPA multiagent system with a generic location service for users. We discuss several a...

Access control policies often are partly static, i.e. no dependence on any run-time information, and partly dynamic. However, they are usually enforced dynamically even the static parts. We propose a new hybrid approach to policy enforcement in the Category-Based Access Control (CBAC) meta-model. We build on previous work, which established a static system for the enforcement of (static) hierar...

Context-aware computing requires the automatic tailoring of information and services based on the current context of the user. The context of the user typically consists of a set of userspecific parameters including his location, the characteristics of the access device and interface, and the interests of the user, usually represented in an user profile. Rover enables services with the followin...