The Experts below are selected from a list of 436017 Experts worldwide ranked by ideXlab platform
Mathias Uslar - One of the best experts on this subject based on the ideXlab platform.
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applying the smart grid Architecture Model for designing and validating system of systems in the power and energy domain a european perspective
2019Co-Authors: Mathias Uslar, Seppo Horsmanheimo, Sebastian Rohjans, Christian Neureiter, Filip Andren, Jorge Velasquez, Cornelius Steinbrink, Venizelos Efthymiou, Gianluigi Migliavacca, Helfried BrunnerAbstract:The continuously increasing complexity of modern and sustainable power and energy systems leads to a wide range of solutions developed by industry and academia. To manage such complex system-of-systems, proper engineering and validation approaches, methods, concepts, and corresponding tools are necessary. The Smart Grid Architecture Model (SGAM), an approach that has been developed during the last couple of years, provides a very good and structured basis for the design, development, and validation of new solutions and technologies. This review therefore provides a comprehensive overview of the state-of-the-art and related work for the theory, distribution, and use of the aforementioned architectural concept. The article itself provides an overview of the overall method and introduces the theoretical fundamentals behind this approach. Its usage is demonstrated in several European and national research and development projects. Finally, an outlook about future trends, potential adaptations, and extensions is provided as well.
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domain specific and Model based systems engineering in the smart grid as prerequesite for security by design
2016Co-Authors: Christian Neureiter, Dominik Engel, Mathias UslarAbstract:The development of Smart Grid systems has proven to be a challenging task. Besides the inherent technical complexity, the involvement of different stakeholders from different disciplines is a major challenge. In order to maintain the strict security requirements, holistic systems engineering concepts and reference Architectures are required that enable the integration, maintenance and evaluation of Smart Grid security. In this paper, a conceptual approach is presented on how to enable the integration of security by design in the development of Smart Grid Systems. A major cornerstone of this approach is the development of a domain-specific and standards-based Modelling language on basis of the M/490 Smart Grid Architecture Model (SGAM). Furthermore, this Modelling approach is utilized to develop a reference Architecture Model on basis of the National Institute of Standards and Technology (NIST) Logical Reference Model (LRM) with its integrated security concepts. The availability of a standards-based reference Architecture Model enables the instantiation of particular solutions with a profound basis for security. Moreover, it is demonstrated how such Architecture Models can be utilized to gain insights into potential security implications and furthermore can serve as a basis for implementation.
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SGAM-based methodology to analyse Smart Grid solutions in DISCERN European research project
2014Co-Authors: R. Santodomingo, André Göring, Marion Gottschalk, Mathias Uslar, A. Saleem, Lars Nordstrom, Moustafa ChenineAbstract:The design of future energy automation and management systems requires Distribution System Operators (DSOs) to analyse and compare different technical solutions for determining which of these could be best implemented in their networks. This paper presents a methodology that helps DSOs carry out such a complex task. The methodology is based on the Smart Grid Architecture Model (SGAM) framework. It was implemented using a web-based application that facilitates editing and automatic analysis of SGAM Architectures. The methodology was successfully evaluated in the context of DISCERN European research project.
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Smart Grid Architecture Model use case management in a large European Smart Grid project
2013Co-Authors: Jörn Trefke, Sebastian Rohjans, Sebastian Lehnhoff, Mathias Uslar, Lars Nordstrom, A. SaleemAbstract:On European level the EU Mandate M/490 including the final reports of the respective working groups are gaining momentum in the community. Two of the mandate's core results deal with Architecture description and use case management. As a response to the mandate, among other deliverables, the Smart Grid Architecture Model (SGAM) has been developed to provide a framework for Smart Grid Architectures. Additionally, use case templates as well as a comprehensive methodology for use case management have been specified. The focus of this contribution is to demonstrate how use case management and the SGAM, and thus recommended by the EU, can be applied together in practice to specific use cases provided by the DISCERN project. The very purpose of the SGAM application is to share information among projects that implement similar use cases based on different technical solutions. Finally, open issues and research gaps to be addressed in order to utilize the SGAM will be presented.
José Borbinha - One of the best experts on this subject based on the ideXlab platform.
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maturity assessment of togaf adm using enterprise Architecture Model analysis and description logics
2019Co-Authors: Diogo Proença, José BorbinhaAbstract:A Maturity Model represents a path towards an increasingly organized and systematic way of doing business. It is therefore a widely used technique valuable to assess certain aspects of organizations, as for example business processes. A maturity assessment can enable stakeholders to clearly identify strengths and improvement points, and prioritize actions in order to reach higher maturity levels. Doing maturity assessments can range from simple self-assessment questionnaires to full-blown assessment methods, such as those recommended by the ISO/IEC TS 33030 or the SEI SCAMPI. A main caveat of these assessments is the resources they encompass. In addition, many times the lack of automation renders benchmarks not possible. Assuming that the wide spread of Enterprise Architecture practices is making the Modeling of business domains a fact, and considering the recent state of the art on the representation of those Models as ontologies, this paper proposes how existing semantic technology can be used to automate TOGAF ADM maturity assessment of organizations by automating the analysis of enterprise Architecture Models in ArchiMate.
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using enterprise Architecture Model analysis and description logics for maturity assessment
2018Co-Authors: Diogo Proença, José BorbinhaAbstract:A Maturity Model represents a path towards an increasingly organized and systematic way of doing business. It is therefore a widely used technique valuable to assess certain aspects of organizations, as for example business processes. A maturity assessment can enable stakeholders to clearly identify strengths and improvement points, and prioritize actions in order to reach higher maturity levels. Doing maturity assessments can range from simple self-assessment questionnaires to full-blown assessment methods, such as those recommended by the ISO/IEC 15504 or the SEI CMMI. A main caveat of these assessments is the resources they encompass. In addition, many times the lack of automation renders benchmarks not possible. Assuming that the wide spread of Enterprise Architecture practices is making the Modeling of business domains a fact, and considering the recent state of the art on the representation of those Models as ontologies, this paper proposes how existing semantic technology can be used to automate maturity Models assessment methods.
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an ontological matching approach for enterprise Architecture Model analysis
2016Co-Authors: Marzieh Bakhshandeh, Catia Pesquita, José BorbinhaAbstract:Enterprise Architecture aligns business and information technology through the management of different elements and domains. Performing an integrated analysis of EA Models using automated techniques is necessary when EA Model representations grow in complexity, in order to support, for example, benchmarking of business processes or assessing compliance with requirements. Moreover, heterogeneity challenges arise from the frequent usage of multiple Modelling languages, each based on a specific meta-Model that cross-cuts distinct architectural domains. The motivation of this paper is, therefore, to investigate to what extent ontology matching techniques can be used as a means to improve the execution of automated analysis of EA Model representations, based on the syntax, structure and semantic heterogeneities of these Models. For that, we used AgreementMakerLight, an ontology matching system, to evaluate the matching of EA Models based on the ArchiMate and BPMN languages.
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enterprise Architecture Model analysis using description logics
2014Co-Authors: Concalo Antunes, Artur Caetano, José BorbinhaAbstract:Enterprise Architecture involves the use of Models for facilitating the communication between stakeholders, which is required for the maintenance of the business/IT alignment. In that sense, the Models should provide the necessary information for articulated decision-making, which, in complex scenarios, can result in the overwhelming complexity of the Architecture descriptions. The complexity of the Models might render manual analysis practically impossible, hence the appearance of automated analysis proposals throughout the years. Ontologies are a means for formally describing domain Models, adding unambiguous meaning to its terms and relations. Moreover, ontologies provide computational inference mechanisms which can be used for the analysis of domain Models. This work discusses the use of ontologies for EA analysis, focusing on the particular case of description logics. For that purpose, a survey on analysis approaches is performed and the reasoning features provided by description logics are matched to the different types of EA analysis. Based on such findings, a set of constructs is proposed for the representation, integration, and analysis of EA Models. Finally, a demonstration of such constructs applied in compliance analysis is performed using an example scenario.
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ontology based enterprise Architecture Model analysis
2014Co-Authors: Gonçalo Antunes, Marzieh Bakhshandeh, Rudolf Mayer, José Borbinha, Artur CaetanoAbstract:An enterprise Architecture provides views on heterogeneous domains, such as business processes, people, business rules, application components, and technological infrastructure. These views are defined according to specific concerns and need to be expressed with an adequate description language. This entails integrating the description languages as a means to address the multiple concerns but raises the challenge of keeping the Models coherent, consistent and traceable. This work describes an application of ontology engineering to enterprise Architecture. The contribution is an extensible Architecture description language that includes an upper ontology that can be integrated with multiple domain-specific ontologies, each focusing on different concerns. The resulting integrated Models can be automatically analysed.
Christian Neureiter - One of the best experts on this subject based on the ideXlab platform.
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applying the smart grid Architecture Model for designing and validating system of systems in the power and energy domain a european perspective
2019Co-Authors: Mathias Uslar, Seppo Horsmanheimo, Sebastian Rohjans, Christian Neureiter, Filip Andren, Jorge Velasquez, Cornelius Steinbrink, Venizelos Efthymiou, Gianluigi Migliavacca, Helfried BrunnerAbstract:The continuously increasing complexity of modern and sustainable power and energy systems leads to a wide range of solutions developed by industry and academia. To manage such complex system-of-systems, proper engineering and validation approaches, methods, concepts, and corresponding tools are necessary. The Smart Grid Architecture Model (SGAM), an approach that has been developed during the last couple of years, provides a very good and structured basis for the design, development, and validation of new solutions and technologies. This review therefore provides a comprehensive overview of the state-of-the-art and related work for the theory, distribution, and use of the aforementioned architectural concept. The article itself provides an overview of the overall method and introduces the theoretical fundamentals behind this approach. Its usage is demonstrated in several European and national research and development projects. Finally, an outlook about future trends, potential adaptations, and extensions is provided as well.
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domain specific and Model based systems engineering in the smart grid as prerequesite for security by design
2016Co-Authors: Christian Neureiter, Dominik Engel, Mathias UslarAbstract:The development of Smart Grid systems has proven to be a challenging task. Besides the inherent technical complexity, the involvement of different stakeholders from different disciplines is a major challenge. In order to maintain the strict security requirements, holistic systems engineering concepts and reference Architectures are required that enable the integration, maintenance and evaluation of Smart Grid security. In this paper, a conceptual approach is presented on how to enable the integration of security by design in the development of Smart Grid Systems. A major cornerstone of this approach is the development of a domain-specific and standards-based Modelling language on basis of the M/490 Smart Grid Architecture Model (SGAM). Furthermore, this Modelling approach is utilized to develop a reference Architecture Model on basis of the National Institute of Standards and Technology (NIST) Logical Reference Model (LRM) with its integrated security concepts. The availability of a standards-based reference Architecture Model enables the instantiation of particular solutions with a profound basis for security. Moreover, it is demonstrated how such Architecture Models can be utilized to gain insights into potential security implications and furthermore can serve as a basis for implementation.
Robert Winter - One of the best experts on this subject based on the ideXlab platform.
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success factors for federated enterprise Architecture Model management
2015Co-Authors: Pouya Aleatrati Khosroshahi, Matheus Hauder, Sascha Roth, Florian Matthes, Stephan Aier, Robert WinterAbstract:Recent approaches for managing Enterprise Architecture (EA) Models provide technical systems to procure information from existing repositories within the application landscape of an organization. Beyond technical solutions, social factors are of utmost importance to implement a successful EA initiative. Institutional theory has for example been employed to understand crucial factors for realizing EA Management (EAM) benefits through architectural thinking. Yet, it remains unclear how these social factors influence a federated approach for EA Model management. Based on a socio-technical systems perspective, we investigate success factors for Federated EA Model Management (FEAMM) by conducting qualitative interviews with industry experts. Our findings suggest that success factors for FEAMM are related to the Model sources, Modeling instruments, and Model integration aspects from a technical perspective as well as to organizational grounding, governance, enforcement, efficiency, goal alignment, and trust from a social perspective.
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A Federated Approach to Enterprise Architecture Model Maintenance
2007Co-Authors: Ronny Fischer, Stephan Aier, Robert WinterAbstract:Enterprise Architecture is gaining acceptance as an approach to manage change and foster IT/business alignment by (1) propagating strategy and process changes to the software and infrastructure level, by (2) supporting consistent business transformation enabled by technology innovations, and by (3) decoupling business-oriented and technology-oriented Architectures. Due to constant change in business as well as in technology, enterprise Architecture management is a permanent process rather than a one-time effort. To keep enterprise Architecture Models up-to-date, a well-engineered maintenance concept including processes, roles and schedules is needed. This paper discusses the shortcomings of existing approaches to enterprise Architecture Model maintenance, proposes a federated approach, and reports on its implementation at a large financial service provider.
Helfried Brunner - One of the best experts on this subject based on the ideXlab platform.
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applying the smart grid Architecture Model for designing and validating system of systems in the power and energy domain a european perspective
2019Co-Authors: Mathias Uslar, Seppo Horsmanheimo, Sebastian Rohjans, Christian Neureiter, Filip Andren, Jorge Velasquez, Cornelius Steinbrink, Venizelos Efthymiou, Gianluigi Migliavacca, Helfried BrunnerAbstract:The continuously increasing complexity of modern and sustainable power and energy systems leads to a wide range of solutions developed by industry and academia. To manage such complex system-of-systems, proper engineering and validation approaches, methods, concepts, and corresponding tools are necessary. The Smart Grid Architecture Model (SGAM), an approach that has been developed during the last couple of years, provides a very good and structured basis for the design, development, and validation of new solutions and technologies. This review therefore provides a comprehensive overview of the state-of-the-art and related work for the theory, distribution, and use of the aforementioned architectural concept. The article itself provides an overview of the overall method and introduces the theoretical fundamentals behind this approach. Its usage is demonstrated in several European and national research and development projects. Finally, an outlook about future trends, potential adaptations, and extensions is provided as well.
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laboratory infrastructure driven key performance indicator development using the smart grid Architecture Model
2017Co-Authors: Mazheruddin H. Syed, Thomas I. Strasser, Helfried Brunner, Oliver Gehrke, Steven M. Blair, Graeme Burt, E Guillo, J E RodriguezsecoAbstract:This paper presents a methodology for collaboratively designing laboratory experiments and developing key performance indicators for the testing and validation of novel power system control Architectures in multiple laboratory environments. The contribution makes use of the smart grid Architecture Model (SGAM) as it facilitates the integration of individually developed control functions into a consolidated solution for laboratory validation and testing. The experimental results obtained across multiple laboratories can be efficiently compared, when the proposed methodology is adopted and thus the paper offers means of support for improved cooperation in smart grid validation and round robin testing.