Ubiquitous System

Based on the Technology Acceptance Model the research tests a number of hypotheses that examined how training, helpdesk, user manual and ERP communication affect the core TAM variables in the context of ERP implementation. The empirical analysis shows that these organizational support practices are significantly related to 'perceived usefulness' and 'perceived ease of use'.

""The emergence of pervasive technologies has led to an increased interest in both the design and the development of pervasive games. This paper presents “Them and Us”, an indoor pervasive game which uses theatrical processes to encourage social interaction within the confines of the game. The “Them and Us” game play places a group of people together in a single space to interact with one another, whilst location-based technology informs us about the locative-nature (who, where and when) of the social interactions formed while in that space, in order to score points based on this interaction. “Them and Us” adopts a narrative-based approach in which a script informs the way that participants play the game and the way their social behaviour, in regard to this becomes part of the game mechanism. This new genre of interactive game-based artwork intertwines the physical and virtual contexts of the players in order to create new and exciting player experiences. The design of “Them and Us” emphasizes the use of tracking the audience and performers as a way to encourage interaction within the game-space.

Keywords
Location/tracking technology, entertainment applications, computer-augmented environments, pervasive gaming.""

Purpose -Ubiquitous web applications (UWA) are a new type of web applications which are accessed in various contexts, i.e. through different devices, by users with various interests, at anytime from anyplace around the globe. For such full-fledged, complex software systems, a methodologically sound engineering approach in terms of model-driven engineering (MDE) is crucial. Several modeling approaches have already been proposed that capture the ubiquitous nature of web applications, each of them having different origins, pursuing different goals and providing a pantheon of concepts. This paper aims to give an in-depth comparison of seven modeling approaches supporting the development of UWAs. Design/methodology/approach -This methodology is conducted by applying a detailed set of evaluation criteria and by demonstrating its applicability on basis of an exemplary tourism web application. In particular, five commonly found ubiquitous scenarios are investigated, thus providing initial insight into the modeling concepts of each approach as well as to facilitate their comparability. Findings -The results gained indicate that many modeling approaches lack a proper MDE foundation in terms of meta-models and tool support. The proposed modeling mechanisms for ubiquity are often limited, since they neither cover all relevant context factors in an explicit, self-contained, and extensible way, nor allow for a wide spectrum of extensible adaptation operations. The provided modeling concepts frequently do not allow dealing with all different parts of a web application in terms of its content, hypertext, and presentation levels as well as their structural and behavioral features. Finally, current modeling approaches do not reflect the crosscutting nature of ubiquity but rather intermingle context and adaptation issues with the core parts of a web application, thus hampering maintainability and extensibility. Originality/value -Different from other surveys in the area of modeling web applications, this paper specifically considers modeling concepts for their ubiquitous nature, together with an investigation of available support for MDD in a comprehensive way, using a well-defined as well as fine-grained catalogue of more than 30 evaluation criteria.

In this contribution to the ongoing early discussions about mobile and personal projectors we assess the state of the art using our grounding in previous user-centred work in urban environments, virtual heritage and museums. From this assessment we isolate the projector phone as a uniquely interesting new device and put forward a series of discussion points relating to three key conceptual issues of projector phone applications. In order to drive the discussion further we also suggest two innovative applications for the projector phone that expand the existing application domain into interesting new areas.

The emergence of pervasive technologies has led to an increased interest in both the design and the development of pervasive games. This paper presents "Them and Us", an indoor pervasive game which uses theatrical processes to encourage social interaction within the confines of the game. The "Them and Us" game play places a group of people together in a single space to interact with one another, whilst location-based technology informs us about the locative-nature (who, where and when) of the social interactions formed while in that space, in order to score points based on this interaction. "Them and Us" adopts a narrative-based approach in which a script informs the way that participants play the game and the way their social behaviour, in regard to this becomes part of the game mechanism. This new genre of interactive game-based artwork intertwines the physical and virtual contexts of the players in order to create new and exciting player experiences. The design of "Them and Us" emphasizes the use of tracking the audience and performers as a way to encourage interaction within the game-space.

In this article we present a review of selected literature of context-aware pervasive computing while integrating theory and practice from various disciplines in order to construct a theoretical grounding and a technical follow-up path for our future research. This paper is not meant to provide an extensive review of the literature, but rather to integrate and extend fundamental and promising theoretical and technical aspects found in the literature. Our purpose is to use the constructed theory and practice in order to enable anywhere and anytime adaptive e-learning environments. We particularly elaborate on context, adaptivity, context-aware systems, ontologies and software development issues. Furthermore, we represent our view point for context-aware pervasive application development particularly based on higher abstraction where ontologies and semantic web activities, also web itself, are of crucial.

Ntralllazzu is the title of a cycle of works based on interactive live scores, that reflects on the multifaceted philosophical concepts of liveness and interaction both from a creative point of view and in more critical terms. The work is based on a projected score that interacts in real time with the material played by the performer(s). While one of the performers plays, the sound is fed to and processed by patching software, and generates both electronic sounds and a score, which is to generally, but not necessarily, to be performed by a second player. In this paper, we discuss the ways in which subsequent versions of Ntrallazzu exist in between two fundamental sets of opposites, namely, interactivity/interpassivity and presence/absence.

Purpose -Ubiquitous web applications (UWA) are a new type of web applications which are accessed in various contexts, i.e. through different devices, by users with various interests, at anytime from anyplace around the globe. For such full-fledged, complex software systems, a methodologically sound engineering approach in terms of model-driven engineering (MDE) is crucial. Several modeling approaches have already been proposed that capture the ubiquitous nature of web applications, each of them having different origins, pursuing different goals and providing a pantheon of concepts. This paper aims to give an in-depth comparison of seven modeling approaches supporting the development of UWAs. Design/methodology/approach -This methodology is conducted by applying a detailed set of evaluation criteria and by demonstrating its applicability on basis of an exemplary tourism web application. In particular, five commonly found ubiquitous scenarios are investigated, thus providing initial insight into the modeling concepts of each approach as well as to facilitate their comparability. Findings -The results gained indicate that many modeling approaches lack a proper MDE foundation in terms of meta-models and tool support. The proposed modeling mechanisms for ubiquity are often limited, since they neither cover all relevant context factors in an explicit, self-contained, and extensible way, nor allow for a wide spectrum of extensible adaptation operations. The provided modeling concepts frequently do not allow dealing with all different parts of a web application in terms of its content, hypertext, and presentation levels as well as their structural and behavioral features. Finally, current modeling approaches do not reflect the crosscutting nature of ubiquity but rather intermingle context and adaptation issues with the core parts of a web application, thus hampering maintainability and extensibility. Originality/value -Different from other surveys in the area of modeling web applications, this paper specifically considers modeling concepts for their ubiquitous nature, together with an investigation of available support for MDD in a comprehensive way, using a well-defined as well as fine-grained catalogue of more than 30 evaluation criteria.