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Maxantalet träffar du kan exportera från sökgränssnittet är 250. Vid större uttag använd dig av utsökningar.
  • 1. Barbosa, Amanda
    et al.
    Santana, Alixandre
    Hacks, Simon
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Stein, Niels von
    A Taxonomy for Enterprise Architecture Analysis Research2019Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 2. Bebensee, Björn
    et al.
    Hacks, Simon
    Software Systems Architecture and Security.
    Applying Dynamic Bayesian Networks for Automated Modeling in ArchiMate: A Realization Study2019Konferensbidrag (Refereegranskat)
  • 3. Borozanov, Vasil
    et al.
    Hacks, Simon
    Silva, Nuno
    Using Machine Learning Techniques for Evaluating the Similarity of Enterprise Architecture Models2019Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 4. Dohmen, Niklas
    et al.
    Koopmann, Kevin
    Hacks, Simon
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Optimizing Enterprise Architecture Considering Different Budgets2019Ingår i: INFORMATIK 2019 / [ed] Claude Draude, Martin Lange, Bernhard Sick, Gesellschaft für Informatik e.V. , 2019, s. 45-58Konferensbidrag (Refereegranskat)
    Abstract [en]

    Enterprise Architectures (EA) are used to define the structure and operation of an organization and commonly find usage in the realization and modification of IT business strategies. We propose a technique to optimize the costs incurred between two layers of the EA, especially, considering differing departmental budgets. This is achieved through consideration of a flow problem aiming to optimize a graph consisting of different nodes, allowing budgets to be used by different departments. Additionally, we implement techniques previously published to allow operational and transitioning costs to be taken into consideration, in an effort to better reflect the organizational problems found in reality.

    Ladda ner fulltext (pdf)
    fulltext
  • 5.
    Hacks, Simon
    Software Systems Architecture and Security.
    Improving the Quality of Enterprise Architecture Models: - Processes and Techniques -2019Bok (Övrigt vetenskapligt)
  • 6. Hacks, Simon
    et al.
    Brosius, Maximilian
    Aier, Stephan
    A Case Study of Stakeholder Concerns on EAM2017Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 7.
    Hacks, Simon
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Datavetenskap, Nätverk och systemteknik.
    Hacks, Alexander
    Universität Duisburg-Essen, Duisburg, Germany.
    Katsikeas, Sotirios
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Datavetenskap, Nätverk och systemteknik.
    Klaer, Benedikt
    Institute for High Voltage Technology, RWTH Aachen University, Aachen, Germany.
    Lagerström, Robert
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Datavetenskap, Nätverk och systemteknik.
    Creating MAL Instances Using ArchiMate on the Example of Attacks on Power Plants and Power Grids2019Ingår i: Proceeding of the 2019 IEEE 23rd International Enterprise Distributed Object Computing Conference (EDOC), IEEE, 2019Konferensbidrag (Refereegranskat)
    Abstract [en]

    Cyber-attacks on power assets can have disastrous consequences for individuals, regions, and whole nations. In order to respond to these threats, the assessment of power grids' and plants' cyber security can foster a higher degree of safety for the whole infrastructure dependent on power. Hitherto, we propose the use of attack simulations based on system architecture models. To reduce the effort of creating new attack graphs for each system of a given type, domain-specific attack languages may be employed. They codify common attack logics of the considered domain. Previously, MAL (the Meta Attack Language) was proposed, which serves as a framework to develop domain specific attack languages. We extend the tool set of MAL by developing an approach to model security domains in ArchiMate notation. Next, those models are used to create a MAL instance, which reflects the concepts modeled in ArchiMate. These instances serve as input to simulate attacks on certain systems. To show the applicability of our approach, we conduct two case studies in the power domain. On the one hand, we model a thermal power plant and possible attacks on it. On the other hand, we use the attack on the Ukrainian power grid for our case study.

    Ladda ner fulltext (pdf)
    fulltext
  • 8.
    Hacks, Simon
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Datavetenskap, Nätverk och systemteknik. Rhein Westfal TH Aachen, Res Grp Software Construct, Aachen, Germany.
    Hacks, Alexander
    Univ Duisburg Essen, Duisburg, Germany..
    Katsikeas, Sotirios
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Datavetenskap, Nätverk och systemteknik.
    Klaer, Benedikt
    Rhein Westfal TH Aachen, Inst High Voltage Technol, Aachen, Germany..
    Lagerström, Robert
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Datavetenskap, Nätverk och systemteknik.
    Creating Meta Attack Language Instances using ArchiMate: Applied to Electric Power and Energy System Cases2019Ingår i: 2019 IEEE 23rd International Enterprise Distributed Object Computing Conference (EDOC), IEEE, 2019, s. 88-97Konferensbidrag (Refereegranskat)
    Abstract [en]

    Cyber-attacks on power assets can have disastrous consequences for individuals, regions, and whole nations. In order to respond to these threats, the assessment of power grids' and plants' cyher security can foster a higher degree of safety for the whole infrastructure dependent on power. Hitherto, we propose the use of attack simulations based on system architecture models. To reduce the effort of creating new attack graphs for each system of a given type, domain-specific attack languages may be employed. They codify common attack logics of the considered domain. Previously, MAL (the Meta Attack Language) was proposed, which serves as a framework to develop domain specific attack languages. We extend the tool set of MAL by developing an approach to model security domains in ArchiMate notation. Next, those models are used to create a MAL instance, which reflects the concepts modeled in ArchiMate. These instances serve as input to simulate attacks on certain systems. To show the applicability of our approach, we conduct two case studies in the power domain. On the one hand, we model a thermal power plant and possible attacks on it. On the other hand, we use the attack on the Ukrainian power grid for our case study.

  • 9.
    Hacks, Simon
    et al.
    Software Systems Architecture and Security.
    Höfert, Hendrik
    Salentin, Johannes
    Yeong, Yoon Chow
    Lichter, Horst
    Towards the Definition of Enterprise Architecture Debts2019Ingår i: 2019 IEEE 23rd International Enterprise Distributed Object Computing Workshop (EDOCW), IEEE , 2019, s. 9-16Konferensbidrag (Refereegranskat)
  • 10. Hacks, Simon
    et al.
    Lichter, Horst
    A Probabilistic Enterprise Architecture Model Evolution2018Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 11. Hacks, Simon
    et al.
    Lichter, Horst
    Optimierung von Unternehmensarchitekturen unter Berücksichtigung von Transitionskosten2018Ingår i: HMD Praxis der Wirtschaftsinformatik, ISSN 2198-2775, Vol. 55, nr 5, s. 928-941Artikel i tidskrift (Refereegranskat)
  • 12. Hacks, Simon
    et al.
    Lichter, Horst
    Qualitative Comparison of Enterprise Architecture Model Maintenance Processes2020Konferensbidrag (Refereegranskat)
  • 13. Hacks, Simon
    et al.
    Lichter, Horst
    Towards an Enterprise Architecture Model Evolution2018Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 14. Hacks, Simon
    et al.
    Steffens, Andreas
    Hansen, Peter
    Rajashekar, Nikhitha
    A Continuous Delivery Pipeline for EA Model Evolution2019Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 15. Hacks, Simon
    et al.
    Timm, Felix
    Towards a Quality Framework for Enterprise Architecture Models (Extended Abstract)2018Ingår i: EMISA Forum, ISSN 1610-3351, Vol. 38, nr 1, s. 32-33Artikel i tidskrift (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 16.
    Katsikeas, Sotirios
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Nätverk och systemteknik.
    Johnson, Pontus
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Nätverk och systemteknik.
    Hacks, Simon
    Lagerström, Robert
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Nätverk och systemteknik.
    Probabilistic Modeling and Simulation of Vehicular Cyber Attacks: An Application of the Meta Attack Language2019Ingår i: ICISSP 2019 - Proceedings of the 5th International Conference on Information Systems Security and Privacy, SciTePress, 2019, s. 175-182Konferensbidrag (Refereegranskat)
    Abstract [en]

    Attack simulations are a feasible means to assess the cyber security of systems. The simulations trace the steps taken by an attacker to compromise sensitive system assets. Moreover, they allow to estimate the time conducted by the intruder from the initial step to the compromise of assets of interest. One commonly accepted approach for such simulations are attack graphs, which model the attack steps and their dependencies in a formal way. To reduce the effort of creating new attack graphs for each system of a given type, domain-specific attack languages may be employed. They codify common attack logics of the considered domain. Consequently, they ease the reuse of models and, thus, facilitate the modeling of a specific system in the domain. Previously, MAL (the Meta Attack Language) was proposed, which serves as a framework to develop domain specific attack languages. In this article, we present vehicleLang, a Domain Specific Language (DSL) which can be used to model vehicles with respect to their IT infrastructure and to analyze their weaknesses related to known attacks. To model domain specifics in our language, we rely on existing literature and verify the language using an interview with a domain expert from the automotive industry. To evaluate our results, we perform a Systematic Literature Review (SLR) to identify possible attacks against vehicles. Those attacks serve as a blueprint for test cases checked against the vehicleLang specification.

  • 17. Mathew, Delin
    et al.
    Hacks, Simon
    Lichter, Horst
    Developing a Semantic Mapping between TOGAF and BSI-IT-Grundschutz2018Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 18. Rajashekar, Nikhitha
    et al.
    Hacks, Simon
    Silva, Nuno
    A Performance Comparison of Graph Analytic Methods for Supporting Enterprise Architecture Model Maintenance2019Konferensbidrag (Refereegranskat)
  • 19. Salentin, Johannes
    et al.
    Hacks, Simon
    Towards a Catalog of Enterprise Architecture Smells2020Konferensbidrag (Refereegranskat)
  • 20. Timm, Felix
    et al.
    Hacks, Simon
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Thiede, Felix
    Hintzpeter, Daniel
    Towards a Quality Framework for Enterprise Architecture Models2017Konferensbidrag (Refereegranskat)
    Ladda ner fulltext (pdf)
    fulltext
  • 21. Yeong, Yoon Chow
    et al.
    Hacks, Simon
    Lichter, Horst
    Prioritization of EA Debts Facilitating Portfolio Theory2019Ingår i: Proceedings of the 7th International Workshop on Quantitative Approaches to Software Quality co-located with 26th Asia-Pacific Software Engineering Conference (APSEC 2019), CEUR-WS.org , 2019, Vol. 2511, s. 45-52Konferensbidrag (Refereegranskat)
1 - 21 av 21
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