Service-oriented system engineering

Service-Oriented System Engineering (SOSE) is one of the emerging research areas that involves a number of research challenges in engineering service-oriented systems, the architecture and computing paradigm as well as the development and management of service-oriented systems. Service-Oriented Computing (SOC) exploits services as the fundamental elements for developing computer-based systems. It has been applied to various areas and promotes fundamental changes to system architecture, especially changing the way software systems are being analyzed, architected, designed, implemented, tested, evaluated, delivered, consumed, maintained and evolved. The innovations of SOC also offer many interesting avenues of research for scientific and industrial communities. In this paper, we present the concepts of the SOSE from the related work. The motivation, opportunities and challenges of the SOSE is highlighted thereafter. In addition to this, a brief overview of accepted papers in our Special Issue on SOSE is presented. Finally we highlight and summarize this paper.N/

Coordinación de dispositivos en ambientes ubicuos mediante coreografías : Tesis doctoral desarrollada en la Universidad Nacional de San Luis - San Luis - Argentina

Introducción: Actualmente nos encontramos involucrados en ambientes donde los dispositivos ubicuos forman parte de nuestra vida cotidiana y de nuestras tareas diarias. De forma permanente estamos interactuando con dichos dispositivos y más aún, con los servicios que ellos nos brindan. En casi todos los casos, los dispositivos ubicuos no proporcionan servicios de forma aislada, sino que deben cooperar con otros dispositivos. Objetivo: El objetivo principal de esta investigación es el de definir un mecanismo de coordinación de dispositivos ubicuos que garantice su interoperabilidad independientemente del modelo y fabricante del mismo; utilizando los estándares de SOA y de coreografías para la composición de servicios. Metodología: Se ha utilizado como metodología de investigación design science, ya que es la que mejor se adapta a la naturaleza del problema, planteando como uno de sus lincamientos la construcción de artefactos y su posterior evaluación. Resultados: Se ha obtenido un framework de coordinación de dispositivos a través de la utilización de coreografías, que funciona de manera correcta y dando soporte a las características distintivas de los dispositivos ubicuos. La solución planteada es simple, interoperable y extensible.Eje: Tesis de Doctorado.Red de Universidades con Carreras en Informátic

ESTUDIO DE REDES DE SENSORES Y APLICACIONES ORIENTADAS A LA RECOLECCIÓN Y ANÁLISIS DE SEÑALES BIOMÉDICAS.

RESUMEN ANALÍTICOEl presente estudio realiza un análisis de las principales investigacionesque en los últimos años comprenden el uso de las redes de sensores inalámbricas (WSN) para aplicaciones médicas ydecuidado de la salud, con énfasis en lo relacionado con la captura y envío de datos en tiempo real, teniendo en cuenta la concepción de red WSN, sus protocolos y aplicaciones, como también eluso de sensores, sus clases y características;y la forma como se integran para hacer un sistema que apoye a la medicina mediante el uso de la tecnología en lo que generalmente se denominatelemedicina. Adicionalmente se ha tenido en cuenta que la información obtenida de la red de sensores es el insumo que permite el desarrollo de aplicaciones para el cuidado de la salud, la cuales un área de investigación que promete importantes oportunidades de investigación, por ello se ha realizado una revisión inicial del estado del arte en este tema. Por último, el estudio identifica losprincipales problemas y retos que presentan las aplicaciones propuestas en procura del análisis de dichas situaciones que a futuro pueden determinar nuevas investigaciones y desarrollos en el campode estudio.PALABRAS CLAVES: Telemedicina, Sensores, WSN, Minería de datos, Señales Biomédicas. ANALYTICAL SUMMARYThis survey aims to provide a review of the advancements in wireless sensor network (WSN) for health care applications. This includes the capture and real-time delivery of sensor data, the designof the WSN, its protocols, sensors, and its real-time requirements. In general, these kinds of systems are considered Telemedicine applications and have been the subject of extensive research. Theinformation collected by the WSN is the prime matter for the development of healthcare applications, anpromising area of research where we provide an initial review of the state of the art.Finally; thiswork presents a review of the main research problems in the area and outlines possible lines forfurther development.KEYWORDS: Telemedicine, Sensors, WSN, Data Mining, Biomedical Signals.

Capítulo 1: Las redes de sensores inalámbricas, arquitectura y aplicaciones

Las redes de sensores inalámbricas (WSN), son una tendencia tecnológica que cada día cuenta con más aplicaciones, las características de sus nodos, los protocolos que utilizan y la versatilidad de sus configuraciones, las hacen como una opción importante dentro del mundo tecnológico. Actualmente no es extraño encontrar en un hospital una WSN que haga seguimiento a un paciente con una determinada patología; como tampoco es fuera de lo común que en algunas granjas tecnificadas, las WSN ayuden a controlar el cultivo de la plantas que allí se producen; también es posible que alguien que haya viajado recientemente en un sistema de transporte masivo, haya experimentado que el bus mostraba en una pantalla la ubicación del mismo y la próxima estación que cubriría, lo mismo sucede con los aeropuertos, los bancos, etc.; es decir son tantas las aplicaciones que hoy existen alrededor de esta tecnología que su estudio es casi obligado y un referente importante para el desarrollo de nuevas soluciones que propendan por el mejoramiento de las condiciones de vida de las personas. En el presente capitulo se hace una reseña de la definición de las WSN, sus orígenes y aplicaciones. Luego se estudia los elementos que hacen parte de una WSN, las características de los mismos y se profundiza en la descripción técnica que contiene este tipo de redes. Por último, se presenta un acercamiento de la aplicación de las WSN con el cuidado de la salud y se cierra el capítulo con la descripción de un caso específico, relacionado con una patología denominada “Preeclampsia”

Performance and Challenges of Service-Oriented Architecture for Wireless Sensor Networks

Wireless Sensor Networks (WSNs) have become essential components for a variety of environmental, surveillance, military, traffic control, and healthcare applications. These applications face critical challenges such as communication, security, power consumption, data aggregation, heterogeneities of sensor hardware, and Quality of Service (QoS) issues. Service-Oriented Architecture (SOA) is a software architecture that can be integrated with WSN applications to address those challenges. The SOA middleware bridges the gap between the high-level requirements of different applications and the hardware constraints of WSNs. This survey explores state-of-the-art approaches based on SOA and Service-Oriented Middleware (SOM) architecture that provide solutions for WSN challenges. The categories of this paper are based on approaches of SOA with and without middleware for WSNs. Additionally, features of SOA and middleware architectures for WSNs are compared to achieve more robust and efficient network performance. Design issues of SOA middleware for WSNs and its characteristics are also highlighted. The paper concludes with future research directions in SOM architecture to meet all requirements of emerging application of WSNs.https://doi.org/10.3390/s1703053

A Highly Accurate Deep Learning Based Approach For Developing Wireless Sensor Network Middleware

Despite the popularity of wireless sensor networks (WSNs) in a wide range of applications, the security problems associated with WSNs have not been completely resolved. Since these applications deal with the transfer of sensitive data, protection from various attacks and intrusions is essential. From the current literature, we observed that existing security algorithms are not suitable for large-scale WSNs due to limitations in energy consumption, throughput, and overhead. Middleware is generally introduced as an intermediate layer between WSNs and the end user to address security challenges. However, literature suggests that most existing middleware only cater to intrusions and malicious attacks at the application level rather than during data transmission. This results in loss of nodes during data transmission, increased energy consumption, and increased overhead. In this research, we introduce an intelligent middleware based on an unsupervised learning technique called the Generative Adversarial Networks (GANs) algorithm. GANs contain two networks: a generator (G) network and a discriminator (D) network. The G network generates fake data that is identical to the data from the sensor nodes; it combines fake and real data to confuse the adversary and stop them from differentiating between the two. This technique completely eliminates the need for fake sensor nodes, which consume more power and reduce both throughput and the lifetime of the network. The D network contains multiple layers that have the ability to differentiate between real and fake data. The output intended for this algorithm shows an actual interpretation of the data that is securely communicated through the WSN. The framework is implemented in Python with experiments performed using Keras. The results illustrate that the suggested algorithm not only improves the accuracy of the data but also enhances its security by protecting it from attacks. Data transmission from the WSN to the end user then becomes much more secure and accurate compared to conventional techniques. Simulation results show that the proposed technique provides higher throughput and increases successful data rates while keeping the energy consumption low

A service orientated architecture and wireless sensor network approach applied to the measurement and visualisation of a micro injection moulding process. Design, development and testing of an ESB based micro injection moulding platform using Google Gadgets and business processes for the integration of disparate hardware systems on the factory shop floor

Factory shop floors of the future will see a significant increase in interconnected devices for monitoring and control. However, if a Service Orientated Architecture (SOA) is implemented on all such devices then this will result in a large number of permutations of services and composite services. These services combined with other business level components can pose a huge challenge to manage as it is often difficult to keep an overview of all the devices, equipment and services. This thesis proposes an SOA based novel assimilation architecture for integrating disparate industrial hardware based processes and business processes of an enterprise in particular the plastics machinery environment. The key benefits of the proposed architecture are the reduction of complexity when integrating disparate hardware platforms; managing the associated services as well as allowing the Micro Injection Moulding (µIM) process to be monitored on the web through service and data integration. An Enterprise Service Bus (ESB) based middleware layer integrates the Wireless Sensor Network (WSN) based environmental and simulated machine process systems with frontend Google Gadgets (GGs) based web visualisation applications. A business process framework is proposed to manage and orchestrate the resulting services from the architecture. Results from the analysis of the WSN kits in terms of their usability and reliability showed that the Jennic WSN was easy to setup and had a reliable communication link in the polymer industrial environment with the PER being below 0.5%. The prototype Jennic WSN based µIM process monitoring system had limitations when monitoring high-resolution machine data, therefore a novel hybrid integration architecture was proposed. The assimilation architecture was implemented on a distributed server based test bed. Results from test scenarios showed that the architecture was highly scalable and could potentially allow a large number of disparate sensor based hardware systems and services to be hosted, managed, visualised and linked to form a cohesive business process

XXIII Edición del Workshop de Investigadores en Ciencias de la Computación : Libro de actas

Compilación de las ponencias presentadas en el XXIII Workshop de Investigadores en Ciencias de la Computación (WICC), llevado a cabo en Chilecito (La Rioja) en abril de 2021.Red de Universidades con Carreras en Informátic