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Service Oriented Architectures (SOAs) are composed of distributed services that interact through standard interfaces, and evolve transparently to other services and users. Although such dynamicity makes SOA a promising architectural style, it prevents organizations from having complete knowledge of the SOA and of its (possibly untrusted) services. This constitutes an important restriction to the applicability...
Service-based architectures have now become commonplace, creating the need to address their systematic maintenance and evolution. We propose to enable transformation-driven evolution for service architectures in a semi-automated fashion. In contrast to the existing solutions like service wrapping, migration or run-time adaptation etc., the proposal supports primitive and customisable architectural...
We present a novel software architecture for context-aware applications based on a distributed, non-monolithic, simple and extensible relational model for representing context; a service-oriented architecture for computing these relations in a decoupled, flexible fashion; and with data driven, event based communication providing the kind of fine grained dynamic service composition required in mobile...
The design of an enterprise architecture (EA) management function suitable for an organization is no easy to accomplish task. Various frameworks as well as EA management tools exist, which promise to deliver guidance for performing EA management. Nevertheless, the approaches presented stay either on a level too abstract to provide realization support or are far too general neglecting organization-specific...
The current Internet does not enable easy introduction and deployment of new network technologies and services. This paper aims to progress the Future Internet (FI) by introduction of a service composition and execution environment that re-use existing components of access and core networks. This paper presents essential service-centric platforms and software systems that have been developed with...
Cars have become an increasingly important and exciting test bed for ubiquitous computing. However, smart car space is still little addressed in the literature to enable high adaptation in a mobile and resource-limited space. This paper focuses on building a context-aware software infrastructure for smart car space in middleware framework. To support context-awareness, we embed capabilities of context...
The intelligent interaction is an important supporting technique for achieving the merging of the information space and physical space in the internet of things. For now there isn 't a general architecture of the intelligent interaction in the environment of the internet of things. In this paper, we propose an intelligent interaction architecture based on the context merging in the internet of things...
Various scientific computations have become so complex, and thus computation tools play an important role. In this paper, we explore the state-of-the-art framework providing high-level matrix computation primitives with MapReduce through the case study approach, and demonstrate these primitives with different computation engines to show the performance and scalability. We believe the opportunity for...
Enterprise Architecture (EA) has risen as a tool to support the process of making strategic business decisions, by achieving an integral vision of business and IT elements of an enterprise. An EA approach provides a better understanding of relationships between concepts from several domains, such as strategy, process, applications, and information. However, this heterogeneous aspect makes EA modeling...
Early Warning Systems (EWS) are an essential component of effective disaster management. In the past decade we witnessed the evolvement of highly sophisticated warning systems, in particular for large-scale natural disasters such as floods, storms, and tsunamis. These systems increasingly require the use of advanced information processing for accurate monitoring and prediction as well as targeted...
Much work is underway within the broad next generation technologies community on issues associated with the development of services to foster collaboration via the integration of distributed and heterogeneous data systems and technologies. Various technology-driven paradigms have emerged, including Web Services, Web 2.0, Pervasive, Grids and Cloud Computing. Recently, some new paradigms have emerged,...
Creation, interpretation, and evolution of models and diagrams are activities commonly performed in software projects, and the teaching of such activities is fundamental for software engineering education. However, it is difficult to see the changes made in model corrections, evolutions, or maintenance done by the student, as well as by the teacher, comparing templates and different solutions. In...
Process patterns represent well-structured and successful recurring activities of Software Development Methodologies (SDMs). They are able to form a library of reusable building blocks that can be utilized in Situational Method Engineering (SME) for constructing a custom SDM or enhancing an existing one to fit specific project situation. Recently, some researchers have subjectively extracted process...
Ambient-intelligence (AmI) systems raise a series of new challenges in software and system development: Mobility, adaptability and heterogeneity are new concerns that have to be addressed. Many of these concerns are common and therefore should be addressed by a common AmI infrastructure instead of each individual application. This position paper proposes a bottom-up approach for the development of...
The notion of a Personal Smart Space (PSS) offers a new and flexible solution to the problem of implementing pervasive systems. Its attractiveness lies not only in the way in which it bridges the gap between conventional fixed smart spaces and mobile ubiquitous systems, but also in the new functionality it can provide to enhance the user experience. The use of PSSs to realize pervasive systems is...
Mobile agent (MA) is a popular approach that can be applied to achieve predefined goal. A ubiquitous computing engages many computational devices and systems simultaneously, and may not necessarily even be aware that they are doing so. The context of MA, including traveling path and manipulation method, may be dynamically changed according to current state of environment. Therefore, a flexible framework...
The paradigm of service orientation is heavily used to design complex IT systems able to satisfy the need for an agile business support. Many enterprises have established service-oriented architectures (SOAs) of different size and complexity. However, such SOAs need efficient management and the discipline of enterprise architecture management has only just begun to reflect the shift from application...
The adoption of Enterprise Architecture (EA) concepts within organizations is causing an interest in the methodologies and supporting technologies available. Service Oriented Architecture (SOA) supports EA in many facets. However, there is much dissolution with regard to the relationship between EA and SOA within organizations. There are also potential problems that may arise if this relationship...
The transfer from the current power grid to the power grid of the future implicates major changes for all stakeholders participating in the smart grid. Hence, utilities have to face several novel problems in terms of service provision. In this contribution, we examine two complementary views in the overall context of smart grids. We argue for a combination of those two views, based on ontology mappings...
Model-driven approaches have shown that the systematic use of models and model transformations can facilitate the development process of distributed applications. Abstract models can be used to (automatically) generate more detailed models, to simulate and execute application's behavior in early stages, to validate it against requirements, or to generate executable code. These models also document...
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