Managing delays for realtime error correction and compensation of an industrial robot in an open network

The calibration of articulated arms presents a substantial challenge within the manufacturing domain, necessitating sophisticated calibration systems often reliant on the integration of costly metrology equipment for ensuring high precision. However, the logistical complexities and financial burden associated with deploying these devices across diverse systems hinder their widespread adoption. In response, Industry 4.0 emerges as a transformative paradigm by enabling the integration of manufacturing devices into networked environments, thereby providing access through cloud-based infrastructure. Nonetheless, this transition introduces a significant concern in the form of network-induced delays, which can significantly impact realtime calibration procedures. To address this pivotal challenge, the present study introduces an innovative framework that adeptly manages and mitigates network-induced delays. This framework leverages two key components: controller and optimiser, specifically the MPC (Model Predictive Controller) in conjunction with the Extended Kalman Filter (EKF), and a Predictor, characterised as the Dead Reckoning Model (DRM). Collectively, these methodologies are strategically integrated to address and ameliorate the temporal delays experienced during the calibration process. Significantly expanding upon antecedent investigations, the study transcends prior boundaries by implementing an advanced realtime error correction system across networked environments, with particular emphasis on the intricate management of delays originating from network traffic dynamics. The fundamental aim of this research extension is twofold: firstly, it aims to enhance realtime system performance on open networks, while concurrently achieving an impressive level of error correction precision at 0.02 mm. The employment of the proposed methodologies is anticipated to effectively surmount the intricacies and challenges associated with network-induced delays. Subsequently, this endeavour serves to catalyse accurate and efficient calibration procedures in the context of realtime manufacturing scenarios. This research significantly advances the landscape of error correction systems and lays a robust groundwork for the optimised utilisation of networked manufacturing devices within the dynamic realm of Industry 4.0 applications

Semantic discovery and reuse of business process patterns

Patterns currently play an important role in modern information systems (IS) development and their use has mainly been restricted to the design and implementation phases of the development lifecycle. Given the increasing significance of business modelling in IS development, patterns have the potential of providing a viable solution for promoting reusability of recurrent generalized models in the very early stages of development. As a statement of research-in-progress this paper focuses on business process patterns and proposes an initial methodological framework for the discovery and reuse of business process patterns within the IS development lifecycle. The framework borrows ideas from the domain engineering literature and proposes the use of semantics to drive both the discovery of patterns as well as their reuse

Managing HSE risks in the Barents Sea offshore projects: approaches of Norwegian regulators and Eni Norge in Goliat operations

Masteroppgave i Energy management - Nord universitet, 201

Un meta-modèle de composants pour la réalisation d'applications temps-réel flexibles et modulaires

The increase of software complexity along the years has led researchers in the software engineering field to look for approaches for conceiving and designing new systems. For instance, the service-oriented architectures approach is considered nowadays as the most advanced way to develop and integrate fastly modular and flexible applications. One of the software engineering solutions principles is re-usability, and consequently generality, which complicates its appilication in systems where optimizations are often used, like real-time systems. Thus, create real-time systems is expensive, because they must be conceived from scratch. In addition, most real-time systems do not beneficiate of the advantages which comes with software engineering approches, such as modularity and flexibility. This thesis aim to take real time aspects into account on popular and standard SOA solutions, in order to ease the design and development of modular and flexible applications. This will be done by means of a component-based real-time application model, which allows the dynamic reconfiguration of the application architecture. The component model will be an extension to the SCA standard, which integrates quality of service attributs onto the service consumer and provider in order to stablish a real-time specific service level agreement. This model will be executed on the top of a OSGi service platform, the standard de facto for development of modular applications in Java.La croissante complexité du logiciel a mené les chercheurs en génie logiciel à chercher des approcher pour concevoir et projéter des nouveaux systèmes. Par exemple, l'approche des architectures orientées services (SOA) est considérée actuellement comme le moyen le plus avancé pour réaliser et intégrer rapidement des applications modulaires et flexibles. Une des principales préocuppations des solutions en génie logiciel et la réutilisation, et par conséquent, la généralité de la solution, ce qui peut empêcher son application dans des systèmes où des optimisation sont souvent utilisées, tels que les systèmes temps réels. Ainsi, créer un système temps réel est devenu très couteux. De plus, la plupart des systèmes temps réel ne beneficient pas des facilités apportées par le genie logiciel, tels que la modularité et la flexibilité. Le but de cette thèse c'est de prendre en compte ces aspects temps réel dans des solutions populaires et standards SOA pour faciliter la conception et le développement d'applications temps réel flexibles et modulaires. Cela sera fait à l'aide d'un modèle d'applications temps réel orienté composant autorisant des modifications dynamiques dans l'architecture de l'application. Le modèle de composant sera une extension au standard SCA qui intègre des attributs de qualité de service sur le consomateur et le fournisseur de services pour l'établissement d'un accord de niveau de service spécifique au temps réel. Ce modèle sera executé sur une plateforme de services OSGi, le standard de facto pour le developpement d'applications modulaires en Java

Compliance framework for change management in cloud environments

Mención Internacional en el título de doctorThe Governance, Risk and Compliance (GRC) area is one of the critical management areas for every organization. This is particularly the case for information technology (IT) departments where both human resources and technical infrastructures (software and hardware) need to work seamlessly in order to provide the expected benefits. The study of the literature shows that sound GRC methods are key to running and maintaining secure and compliant computing infrastructures. An important and particularly challenging aspect of the IT landscape is its constant and perpetual evolution in order to keep pace with new and emerging technologies that find their way faster and faster into the organizational infrastructure. Since assessments of risks and compliance aspects always refer to a certain (more or less static) situation, such frequent changes pose a real danger to the overall relevance of these assessments in the mid and longterm perspective. So, a sound approach to ensuring compliance not only punctually (both in time and space) but holistically – considering the complete IT landscape in a continuous way – needs to integrate with the change management function of the organization. Another important development in the last eight to ten years was the emergence of Cloud Computing (CC) as a straightforward and efficient way of providing IT functionality to organizations. While it poses many various challenges to IT management in general, CC is particularly relevant for GRC as it makes an IT provision approach that was previously sometimes applied – outsourcing – to a predominant approach to provide infrastructure (called Infrastructure‐as‐a‐Service or IaaS), platforms (called Platform‐as‐a‐Service or PaaS), and software (called Software‐as‐a‐Service or SaaS) within an organization. CC and outsourcing entail wider challenges for GRC as it involves the inclusion of an external party as a service provider within an organization reflecting specific aspects of provider selection, contract management, service level agreements (SLAs), and monitoring. They become even more challenging in the context of frequent and interdependent changes. Therefore, this thesis is aimed at the definition and validation of a Compliance Framework for Change Management in Cloud Environments (short: CFC MCC). The proposed solution of the problem has been approached from a multidisciplinary point of view taking in consideration aspects from computer science, IT management and IT governance, but also such aspects as legal and cultural dimensions. The proposed solution provides a framework to support the solicitation of requirements from different subject areas (e.g., organizational, technological, cultural) and their subsequent consideration within the change management process of established IT management frameworks such as ITIL. It can be tailored to the specific situation of most organizations and provides a consistent approach to address GRC aspects in rapidly evolving cloud‐based organizational IT landscapes. The scientific discourse within the thesis has been structured following best academic practices and recommendations. In the last phase of the research methodology an empirical validation has been performed to verify the applicability of the framework. The data obtained from the validation indicate that the application of the framework for ensuring compliance in CC environments constitutes a relevant improvement of the change management process.El área de gobernanza, riesgo y cumplimiento (por sus siglas en inglés GRC) es una de las áreas de gestión clave en todas las organizaciones. En el caso de los departamentos de Tecnología de la Información (por sus siglas en inglés IT de Information Technology) el área cuenta con una importancia igualmente crucial. Estos departamentos deben orquestar los recursos de capital intelectual y las infraestructuras hardware y software para contribuir a la generación de beneficios empresariales. La literatura ha demostrado que un conjunto de procedimientos en el área GRC es clave para prestar el servicio de forma eficiente a partir del mantenimiento de una infraestructura tecnológica segura y compatible. Un aspecto importante y particularmente retador en el entorno IT es su constante evolución con el propósito de habilitar la adopción de nuevas tecnologías en apoyo de los procesos corporativos. Dado que la evaluación de riesgos y los aspectos de cumplimiento se refieren a una determinada situación que se puede considerar más o menos estática, los continuos cambios en el entorno IT representan una amenaza para la incorporación de nuevas tecnologías en ámbitos corporativos desde el punto de vista GRC. Por ello, un enfoque sólido para garantizar el cumplimiento no sólo de forma puntual en tiempo y espacio sino de forma integral, considerando el entorno IT en una forma continua e integrada con la gestión del cambio corporativa. Otro desarrollo importante y modificador de la situación actual es la emergencia de la computación en la nube (CC, siglas en inglés de Cloud Computing) como una forma efectiva y eficaz de proporcionar la función IT en las organizaciones. Pese a que CC suscita diversos desafíos para la administración IT, es en particular relevante para GRC ya que habilita la externalización del servicio como una aproximación predominante para proporcionar infraestructura (llamado Infraestructure‐as‐a‐Service o IaaS), plataformas (llamado Platformas‐ a‐Service o PaaS) y software (llamado Software‐as‐a‐Service o SaaS) dentro de una organización. CC y la externalización suponen retos más amplios para GRC, ya que implican la inclusión de un proveedor de servicios externo dentro de una organización. Esta circunstancia aflora cuestiones relativas a la selección de proveedores, la gestión de contratos, los acuerdos de nivel de servicio (por sus siglas en inglés SLA), y el seguimiento de las relaciones y los servicios prestados. Estos aspectos, se convierten en un reto aún mayor en el contexto de los cambios frecuentes e interdependientes en el ámbito IT. Por lo tanto, esta tesis está dirigida a la definición y validación de un marco de cumplimiento para la gestión del cambio en entornos relativos a la nube (abreviatura: CFC MCC). La solución propuesta del problema ha sido abordada desde un punto de vista multidisciplinar, tomando en consideración aspectos de la informática, la gestión de IT y el gobierno de IT pero incorporando también aspectos tales como las dimensiones legales y culturales. La solución propuesta proporciona un marco para apoyar la solicitud de requisitos de diferentes áreas (por ejemplo, organizativos, tecnológicos, culturales) y su posterior consideración en el proceso de gestión del cambio de los marcos establecidos de gestión de TI como pueda ser ITIL. EL marco puede ser adaptado a la situación específica de las organizaciones y proporciona un enfoque coherente para abordar los aspectos de GRC en rápida evolución entornos de TI de la organización basados en la nube. El discurso científico dentro de la tesis se ha estructurado siguiendo las prácticas académicas y recomendaciones de investigación. En la última fase de la metodología de la investigación empírica una validación se ha realizado para verificar la aplicabilidad del marco. Los datos obtenidos de la validación indican que la aplicación del marco para garantizar el cumplimiento en entornos CC constituye una mejora relevante del proceso de gestión del cambio de las organizaciones.Programa Oficial de Doctorado en Ciencia y Tecnología InformáticaPresidente: Antonio de Amescua Seco.- Secretario: José Antonio Manzano Calvo.- Vocal: Ahmed Barnaw

DRIVER Technology Watch Report

This report is part of the Discovery Workpackage (WP4) and is the third report out of four deliverables. The objective of this report is to give an overview of the latest technical developments in the world of digital repositories, digital libraries and beyond, in order to serve as theoretical and practical input for the technical DRIVER developments, especially those focused on enhanced publications. This report consists of two main parts, one part focuses on interoperability standards for enhanced publications, the other part consists of three subchapters, which give a landscape picture of current and surfacing technologies and communities crucial to DRIVER. These three subchapters contain the GRID, CRIS and LTP communities and technologies. Every chapter contains a theoretical explanation, followed by case studies and the outcomes and opportunities for DRIVER in this field

Interdependent Security and Compliance in Service Selection

Application development today is characterized by ever shorter release cycles and more frequent change requests. Hence development methods such as service composition are increasingly arousing interest as viable alternative approaches. While employing web services as building blocks rapidly reduces development times, it raises new challenges regarding security and compliance since their implementation remains a black box which usually cannot be controlled. Security in particular gets even more challenging since some applications require domainspecific security objectives such as location privacy. Another important aspect is that security objectives are in general no singletons but subject to interdependence. Hence this thesis addresses the question of how to consider interdependent security and compliance in service composition. Current approaches for service composition do neither consider interdependent security nor compliance. Selecting suiting services for a composition is a combinatorial problem which is known to be NP-hard. Often this problem is solved utilizing genetic algorithms in order to obtain near-optimal solutions in reasonable time. This is particularly the case if multiple objectives have to be optimized simultaneously such as price, runtime and data encryption strength. Security properties of compositions are usually verified using formal methods. However, none of the available methods supports interdependence effects or defining arbitrary security objectives. Similarly, no current approach ensures compliance of service compositions during service selection. Instead, compliance is verified afterwards which might necessitate repeating the selection process in case of a non-compliant solution. In this thesis, novel approaches for considering interdependent security and compliance in service composition are being presented and discussed. Since no formal methods exist covering interdependence effects for security, this aspect is covered in terms of a security assessment. An assessment method is developed which builds upon the notion of structural decomposition in order to assess the fulfillment of arbitrary security objectives in terms of a utility function. Interdependence effects are being modeled as dependencies between utility functions. In order to enable compliance-awareness, an approach is presented which checks compliance of compositions during service selection and marks non-compliant parts. This enables to repair the corresponding parts during the selection process by replacing the current services and hence avoids the necessity to repeat the selection process. It is demonstrated how to embed the presented approaches into a genetic algorithm in order to ease integration with existing approaches for service composition. The developed approaches are being compared to state-of-the-art genetic algorithms using simulations

Dynamic Network Notation: A Graphical Modeling Language to Support the Visualization and Management of Network Effects in Service Platforms

Service platforms have moved into the center of interest in both academic research and the IT industry due to their economic and technical impact. These multitenant platforms provide own or third party software as metered, on-demand services. Corresponding service offers exhibit network effects. The present work introduces a graphical modeling language to support service platform design with focus on the exploitation of these network effects