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Context-awareness plays an important role to offer an intelligence in terms of provision of user-centric features in Internet of Things (IoT). Web of Objects (WoO) has been introduced to support a framework to simplify application deployment, maintenance and operation of IoT service infrastructure by classifying and integrating objects on the World Wide Web. The semantic ontology is applied on a WoO...
This paper describes the acceleration of the declarative knowledge retrieval system of a cognitive architecture, namely ACT-R. The core of ACT-R's retrieval mechanism, activation calculation, is accelerated through leveraging the speed of C++ and the MapReduce program model. Work described in this paper represents an extension of previous Erlang-based concurrent activation. ACT-R's retrieval process...
Software Architecture (SA) plays a critical role in developing and evolving cloud-based applications. We present a Reference Architecture (RA) for designing Cloud-based Tools as a service work SPACE (TSPACE) - a platform for provisioning chain of tools following the Software as a Service (SaaS) model. The TSPACE RA has been designed by leveraging well-known design principles and patterns and has been...
Systems-of-Systems (SoS) result from associating independent, complex systems for fulfilling given missions. In particular, SoS require software architectures that can cope with their dynamic, critical nature. Selecting adequate Architecture Description Languages (ADLs) for representing such architectures contributes for a better communication, analysis, and evolution of these systems. Nonetheless,...
In recent years there has been a huge discussion about the IoT (Internet of Things) concept, and even more about IoT within industrial environment. The real IoT is a network of devices with local intelligence (sensors, lights, gas pumps, HVAC systems), which shares access & control mechanisms to push and pull status and command information from the networked world. However, there are still some...
In the recent years, social applications have competed to incorporate emerging technologies and innovative aspects like semantics technologies, location based services, data ephemerality to ensure user privacy, etc. Although few applications combine these aspects, our challenge is to gather them in applications for communities. Likewise due to the limited resources of mobile devices and the growing...
In this paper two alternative architectures for service management in IoT and sensor networks are discussed. The first one is based on Open Service Gateway (OSGi) framework and Remote Services for OSGi (R-OSGi) bundle. The second architecture extends the notion of REST (Representational State Transfer) paradigm. There were few purposes of the extension. First, efficient, dynamic searching for devices...
Internet is broken and there are several approaches to fix it. In order to validate the different attempts, they need to be evaluated within large-scale environments involving numerous heterogeneous resources. As a result, several testbeds have been established along with a number of competitive mechanisms to federate them. Since most of these protocols try to address similar issues, combining and...
The discovery process has become an important task in the web service life cycle as the number of Mobile Web Services (MWS) has increased nowadays. However, discovering relevant MWS that can match a service request with the service offered has remained a major hindrance. The challenges are concerning the web service discovery with the limitation of mobile devices related to performance. On the other...
Enterprise Architecture Management relies on information from different management levels, functional areas and for example in case of holdings or mergers from different organizations. This results in a variety of tools, models, and model schemata that cover EAM aspects. At the same time, there is a desire for interchangeability and reuse of EA models. Here, model transformation is a promising approach...
Production systems are typically long-living, interdisciplinary systems which undergo continuous evolution. However, especially in the industry of the production automation, any formalized documentation of evolutionary changes is often neither created nor adapted to the application. Accordingly, no knowledge artefacts exist that can be automatically processed in order to support the evolution process...
Context-awareness is becoming an important foundation of adaptive mobile systems, however, techniques for discovering contextually relevant Web content and Smart Devices (i.e., Smart Resources) remain consigned to small-scale deployments. To address this limitation, this paper introduces Ambient Ocean, a Web search engine for context-aware Smart Resource discovery. Ocean provides scalable mechanisms...
Dynamic collaborative environments enabled with multiple computational devices, software and files have always had difficulty sharing these resources in a practical way. Traditionally, people involved in environments like those are forced to waste time and energy trying to locate a resource they do not even know if it exists inside the organization. Those resources can be devices, which make collaborators...
In the Internet of Things, heterogeneous and distributed streams of sensor events is a driver for context-aware behavior in intelligent environments. However, processing the event data usually cross-cuts the business logic of IoT applications and offering such reusable functionality as a service towards a variety of customers with different needs is often faced with scalability concerns. We present...
Internet has evolved and grown tremendously during the last years. We're living the rise of the “self-made” Web Services. On the one hand, this conception reduces the limitations for the creation of new Web Services capable of operating on top of the large Internet technological foundation, while on the other it has some drawbacks such as: slow creation process, long time-to-market, deep knowledge...
Concept mapping has been applied in several fields, including curriculum development, learning, and assessment. The validity of concept mapping process has been proven by many empirical studies. The present paper describes a concept map based system that has been conceived for learners' knowledge assessment in process-oriented short and open answers questions SOAQs' evaluation. The presentation of...
The Internet of Things (IoT) is understood as a major embodiment of the convergence between device-oriented sensor networks and data-oriented applications that is facilitated through the Internet portfolio of technologies. From an architecture perspective, the wide range of operational parameters entailed by multiple application domains myriads of combinations of sensors and applications is the most...
ARCHERY is an architectural description language for modelling and reasoning about distributed, heterogeneous and dynamically reconfigurable systems. This paper proposes a structural semantics for ARCHERY, and a method for deriving labelled transition systems (LTS) in which states and transitions represent configurations and reconfiguration operations, respectively. Architectures are modelled by bigraphs...
Internet of Things (IoT) will connect billions of sensors deployed around the world together. This will create an ideal opportunity to build a sensing-as-a-service platform. Due to large number of sensor deployments, there would be number of sensors that can be used to sense and collect similar information. Further, due to advances in sensor hardware technology, new methods and measurements will be...
Decentralized systems are systems-of-systems whose services are governed by two or more separate organizations under distinct spheres of authority. Coordinated evolution of the various elements of a decentralized system may be difficult, if not impossible, as individual organizations evolve their service offerings in response to organization- and service-specific pressures, including market demand,...
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