This file was created by the TYPO3 extension bib --- Timezone: UTC Creation date: 2024-12-03 Creation time: 15-14-07 --- Number of references 72 inproceedings 2024-kunze-spintrap 2024 5 7 legato https://www.comsys.rwth-aachen.de/fileadmin/papers/2024/2024-kunze-spintrap.pdf IEEE/IFIP Proceedings of the 2024 IEEE/IFIP Network Operations and Management Symposium (NOMS '24) 2024 IEEE/IFIP Network Operations and Management Symposium 10.1109/NOMS59830.2024.10575719 1 IkeKunze ConstantinSander LarsTissen BenediktBode KlausWehrle article 2024_lohmoeller_sovereignty-survey Data & Knowledge Engineering 2024 5 1 151 Data ecosystems emerged as a new paradigm to facilitate the automated and massive exchange of data from heterogeneous information sources between different stakeholders. However, the corresponding benefits come with unforeseen risks as sensitive information is potentially exposed, questioning their reliability. Consequently, data security is of utmost importance and, thus, a central requirement for successfully realizing data ecosystems. Academia has recognized this requirement, and current initiatives foster sovereign participation via a federated infrastructure where participants retain local control over what data they offer to whom. However, recent proposals place significant trust in remote infrastructure by implementing organizational security measures such as certification processes before the admission of a participant. At the same time, the data sensitivity incentivizes participants to bypass the organizational security measures to maximize their benefit. This issue significantly weakens security, sovereignty, and trust guarantees and highlights that organizational security measures are insufficient in this context. In this paper, we argue that data ecosystems must be extended with technical means to (re)establish dependable guarantees. We underpin this need with three representative use cases for data ecosystems, which cover personal, economic, and governmental data, and systematically map the lack of dependable guarantees in related work. To this end, we identify three enablers of dependable guarantees, namely trusted remote policy enforcement, verifiable data tracking, and integration of resource-constrained participants. These enablers are critical for securely implementing data ecosystems in data-sensitive contexts. Data sharing; Confidentiality; Integrity protection; Data Markets; Distributed databases internet-of-production; coat-ers; vesitrust; health https://www.comsys.rwth-aachen.de/fileadmin/papers/2024/2024-lohmoeller-data-sovereignty-survey.pdf Elsevier 0169-023X 10.1016/j.datak.2024.102301 1 JohannesLohmöller JanPennekamp RomanMatzutt Carolin VictoriaSchneider EduardVlad ChristianTrautwein KlausWehrle inproceedings 2024-kunze-civic 2024 5 internet-of-production https://www.comsys.rwth-aachen.de/fileadmin/papers/2024/2024-kunze-civic.pdf IEEE Proceedings of the 7th IEEE International Conference on Industrial Cyber-Physical Systems (ICPS '24) 10.1109/ICPS59941.2024.10639999 1 IkeKunze DominikScheurenberg LiamTirpitz SandraGeisler KlausWehrle inproceedings 2023_bader_reputation-systems 2023 11 16 464-475 Consumers frequently interact with reputation systems to rate products, services, and deliveries. While past research extensively studied different conceptual approaches to realize such systems securely and privacy-preservingly, these concepts are not yet in use in business-to-business environments. In this paper, (1) we thus outline which specific challenges privacy-cautious stakeholders in volatile supply chain networks introduce, (2) give an overview of the diverse landscape of privacy-preserving reputation systems and their properties, and (3) based on well-established concepts from supply chain information systems and cryptography, we further propose an initial concept that accounts for the aforementioned challenges by utilizing fully homomorphic encryption. For future work, we identify the need of evaluating whether novel systems address the supply chain-specific privacy and confidentiality needs. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering (LNICST), Volume 593 SCM; confidentiality; anonymity; voter; votee; FHE internet-of-production https://jpennekamp.de/wp-content/papercite-data/pdf/bpt+23.pdf Springer Proceedings of the 20th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous '23), November 14-17, 2023, Melbourne, VIC, Australia Melbourne, VIC, Australia November 14-17, 2023 978-3-031-63988-3 1867-8211 10.1007/978-3-031-63989-0_24 1 LennartBader JanPennekamp EmildeonThevaraj MariaSpiß Salil S.Kanhere KlausWehrle inproceedings 2022-kunze-coin-transport 2022 11 https://www.comsys.rwth-aachen.de/fileadmin/papers/2022/2022-kunze-coin-transport.pdf Proceedings of the 1st Workshop on New IP and Beyond, co-located with the 30th IEEE International Conference on Network Protocols Lexington, Kentucky, USA 1st Workshop on New IP and Beyond, co-located with the 30th IEEE International Conference on Network Protocols 30 October, 2022 10.1109/ICNP55882.2022.9940379 1 IkeKunze DirkTrossen KlausWehrle inproceedings 2022-wolsing-simple 2022 9 978-3-031-17143-7 574--594 Cyberattacks against industrial control systems pose a serious risk to the safety of humans and the environment. Industrial intrusion detection systems oppose this threat by continuously monitoring industrial processes and alerting any deviations from learned normal behavior. To this end, various streams of research rely on advanced and complex approaches, i.e., artificial neural networks, thus achieving allegedly high detection rates. However, as we show in an analysis of 70 approaches from related work, their inherent complexity comes with undesired properties. For example, they exhibit incomprehensible alarms and models only specialized personnel can understand, thus limiting their broad applicability in a heterogeneous industrial domain. Consequentially, we ask whether industrial intrusion detection indeed has to be complex or can be SIMPLE instead, i.e., Sufficient to detect most attacks, Independent of hyperparameters to dial-in, Meaningful in model and alerts, Portable to other industrial domains, Local to a part of the physical process, and computationally Efficient. To answer this question, we propose our design of four SIMPLE industrial intrusion detection systems, such as simple tests for the minima and maxima of process values or the rate at which process values change. Our evaluation of these SIMPLE approaches on four state-of-the-art industrial security datasets reveals that SIMPLE approaches can perform on par with existing complex approaches from related work while simultaneously being comprehensible and easily portable to other scenarios. Thus, it is indeed justified to raise the question of whether industrial intrusion detection needs to be inherently complex. https://www.comsys.rwth-aachen.de/fileadmin/papers/2022/2022-wolsing-simple.pdf Atluri, Vijayalakshmi and Di Pietro, Roberto and Jensen, Christian D. and Meng, Weizhi Springer Nature Switzerland Proceedings of the 27th European Symposium on Research in Computer Security (ESORICS '22), September 26-30, 2022, Copenhagen, Denmark Copenhagen, Denmark 27th European Symposium on Research in Computer Security (ESORICS) September 26-30, 2022 10.1007/978-3-031-17143-7_28 1 KonradWolsing LeaThiemt Christianvan Sloun EricWagner KlausWehrle MartinHenze techreport draft-irtf-coinrg-use-cases-06 2022 3 draft-irtf-coinrg-use-cases-06 expires: 8 September 2022 (work in progress) https://www.comsys.rwth-aachen.de/fileadmin/papers/2022/draft-irtf-coinrg-use-cases-02.pdf https://datatracker.ietf.org/doc/draft-irtf-coinrg-use-cases/ Online IETF Trust Internet Drafts Internet Engineering Task Force Internet Engineering Task Force IkeKunze KlausWehrle DirkTrossen Marie-JoséMontpetit Xavierde Foy DavidGriffin MiguelRio techreport draft-kunze-coinrg-transport-issues-05 2021 10 draft-kunze-coinrg-transport-issues-05 Expires: 28 April 2022 (work in progress) https://www.comsys.rwth-aachen.de/fileadmin/papers/2022/draft-kunze-coinrg-transport-issues-05.pdf https://datatracker.ietf.org/doc/draft-kunze-coinrg-transport-issues/ IETF Trust Internet Drafts Internet Engineering Task Force Internet Engineering Task Force IkeKunze KlausWehrle DirkTrossen inproceedings 2021-kunze-signal-detection 2021 6 10 internet-of-production https://www.comsys.rwth-aachen.de/fileadmin/papers/2021/2021-kunze-signal-detection.pdf IEEE Proceedings of the 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE) 978-1-7281-9023-5 2163-5145 10.1109/ISIE45552.2021.9576221 1 IkeKunze PhilippNiemietz LiamTirpitz RenéGlebke DanielTrauth ThomasBergs KlausWehrle inproceedings 2021-glebke-service-based-forwarding 2021 6 10 reflexes /fileadmin/papers/2021/2021-glebke-service-based-forwarding.pdf IEEE Proceedings of the 2021 IEEE International Conference on High Performance Switching and Routing: Workshop on Semantic Addressing and Routing for Future Networks (SARNET-21) 978-1-6654-4005-9 2325-5609 10.1109/HPSR52026.2021.9481814 1 RenéGlebke DirkTrossen IkeKunze DavidLou JanRüth MirkoStoffers KlausWehrle inproceedings 2021_gleim_factstack 2021 5 31 P-312 371-395 Data exchange throughout the supply chain is essential for the agile and adaptive manufacturing processes of Industry 4.0. As companies employ numerous, frequently mutually incompatible data management and preservation approaches, interorganizational data sharing and reuse regularly requires human interaction and is thus associated with high overhead costs. An interoperable system, supporting the unified management, preservation and exchange of data across organizational boundaries is missing to date. We propose FactStack, a unified approach to data management and preservation based upon a novel combination of existing Web-standards and tightly integrated with the HTTP protocol itself. Based on the FactDAG model, FactStack guides and supports the full data lifecycle in a FAIR and interoperable manner, independent of individual software solutions and backward-compatible with existing resource oriented architectures. We describe our reference implementation of the approach and evaluate its performance, showcasing scalability even to high-throughput applications. We analyze the system's applicability to industry using a representative real-world use case in aircraft manufacturing based on principal requirements identified in prior work. We conclude that FactStack fulfills all requirements and provides a promising solution for the on-demand integration of persistence and provenance into existing resource-oriented architectures, facilitating data management and preservation for the agile and interorganizational manufacturing processes of Industry 4.0. Through its open source distribution, it is readily available for adoption by the community, paving the way for improved utility and usability of data management and preservation in digital manufacturing and supply chains. Lecture Notes in Informatics (LNI), Volume P-312 Web Technologies; Data Management; Memento; Persistence; PID; Industry 4.0 internet-of-production https://comsys.rwth-aachen.de/fileadmin/papers/2021/2021-gleim-btw-iop-interoperability-realization.pdf Gesellschaft für Informatik Proceedings of the 19th Symposium for Database Systems for Business, Technology and Web (BTW '21), September 13-17, 2021, Dresden, Germany Dresden, Germany September 13-17, 2021 978-3-88579-705-0 1617-5468 10.18420/btw2021-20 1 LarsGleim JanPennekamp LiamTirpitz SaschaWelten FlorianBrillowski StefanDecker inproceedings 2020_gleim_factdag_provenance 2020 11 1 2821 53-58 To foster data sharing and reuse across organizational boundaries, provenance tracking is of vital importance for the establishment of trust and accountability, especially in industrial applications, but often neglected due to associated overhead. The abstract FactDAG data interoperability model strives to address this challenge by simplifying the creation of provenance-linked knowledge graphs of revisioned (and thus immutable) resources. However, to date, it lacks a practical provenance implementation. In this work, we present a concrete alignment of all roles and relations in the FactDAG model to the W3C PROV provenance standard, allowing future software implementations to directly produce standard-compliant provenance information. Maintaining compatibility with existing PROV tooling, an implementation of this mapping will pave the way for practical FactDAG implementations and deployments, improving trust and accountability for Open Data through simplified provenance management. Provenance; Data Lineage; Open Data; Semantic Web Technologies; Ontology Alignment; PROV; RDF; Industry 4.0; Internet of Production; IIoT internet-of-production https://www.comsys.rwth-aachen.de/fileadmin/papers/2020/2020-gleim-factdag-provenance.pdf CEUR Workshop Proceedings Proceedings of the 6th Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW '20), co-located with the 19th International Semantic Web Conference (ISWC '20), November 1-6, 2020, Athens, Greece, Athens, Greece November 1-6, 2020 1613-0073 1 LarsGleim LiamTirpitz JanPennekamp StefanDecker article 2020_niemietz_stamping Procedia Manufacturing 2020 7 11 49 61-68 Sharing data between companies throughout the supply chain is expected to be beneficial for product quality as well as for the economical savings in the manufacturing industry. To utilize the available data in the vision of an Internet of Production (IoP) a precise condition monitoring of manufacturing and production processes that facilitates the quantification of influences throughout the supply chain is inevitable. In this paper, we consider stamping processes in the context of an Internet of Production and the preliminaries for analytical models that utilize the ever-increasing available data. Three research objectives to cope with the amount of data and for a methodology to monitor, analyze and evaluate the influence of available data onto stamping processes have been identified: (i) State detection based on cyclic sensor signals, (ii) mapping of in- and output parameter variations onto process states, and (iii) models for edge and in-network computing approaches. After discussing state-of-the-art approaches to monitor stamping processes and the introduction of the fineblanking process as an exemplary stamping process, a research roadmap for an IoP enabling modeling framework is presented. Proceedings of the 8th International Conference on Through-Life Engineering Service (TESConf '19), October 27-29, 2019, Cleveland, OH, USA Stamping Process; Industry 4.0; Fine-blanking; Internet of production; Condition monitoring; Data analytics internet-of-production https://www.comsys.rwth-aachen.de/fileadmin/papers/2020/2020-niemietz-stamping-modelling.pdf Elsevier Cleveland, OH, USA October 27-29, 2019 2351-9789 10.1016/j.promfg.2020.06.012 1 PhilippNiemietz JanPennekamp IkeKunze DanielTrauth KlausWehrle ThomasBergs inproceedings 2020_pennekamp_supply_chain_accountability 2020 6 7 Today's supply chains are becoming increasingly flexible in nature. While adaptability is vastly increased, these more dynamic associations necessitate more extensive data sharing among different stakeholders while simultaneously overturning previously established levels of trust. Hence, manufacturers' demand to track goods and to investigate root causes of issues across their supply chains becomes more challenging to satisfy within these now untrusted environments. Complementarily, suppliers need to keep any data irrelevant to such routine checks secret to remain competitive. To bridge the needs of contractors and suppliers in increasingly flexible supply chains, we thus propose to establish a privacy-preserving and distributed multi-hop accountability log among the involved stakeholders based on Attribute-based Encryption and backed by a blockchain. Our large-scale feasibility study is motivated by a real-world manufacturing process, i.e., a fine blanking line, and reveals only modest costs for multi-hop tracing and tracking of goods. supply chain; multi-hop tracking and tracing; blockchain; attribute-based encryption; Internet of Production internet-of-production https://comsys.rwth-aachen.de/fileadmin/papers/2020/2020-pennekamp-supply-chain-privacy.pdf IEEE Proceedings of the 2020 IEEE International Conference on Communications Workshops (ICC Workshops '20), 1st Workshop on Blockchain for IoT and Cyber-Physical Systems (BIoTCPS '20), June 7-11, 2020, Dublin, Ireland Dublin, Ireland June 7-11, 2020 978-1-7281-7440-2 2474-9133 10.1109/ICCWorkshops49005.2020.9145100 1 JanPennekamp LennartBader RomanMatzutt PhilippNiemietz DanielTrauth MartinHenze ThomasBergs KlausWehrle article 2020_gleim_factDAG IEEE Internet of Things Journal 2020 4 14 7 4 3243-3253 In the production industry, the volume, variety and velocity of data as well as the number of deployed protocols increase exponentially due to the influences of IoT advances. While hundreds of isolated solutions exist to utilize this data, e.g., optimizing processes or monitoring machine conditions, the lack of a unified data handling and exchange mechanism hinders the implementation of approaches to improve the quality of decisions and processes in such an interconnected environment. The vision of an Internet of Production promises the establishment of a Worldwide Lab, where data from every process in the network can be utilized, even interorganizational and across domains. While numerous existing approaches consider interoperability from an interface and communication system perspective, fundamental questions of data and information interoperability remain insufficiently addressed. In this paper, we identify ten key issues, derived from three distinctive real-world use cases, that hinder large-scale data interoperability for industrial processes. Based on these issues we derive a set of five key requirements for future (IoT) data layers, building upon the FAIR data principles. We propose to address them by creating FactDAG, a conceptual data layer model for maintaining a provenance-based, directed acyclic graph of facts, inspired by successful distributed version-control and collaboration systems. Eventually, such a standardization should greatly shape the future of interoperability in an interconnected production industry. Data Management; Data Versioning; Interoperability; Industrial Internet of Things; Worldwide Lab internet-of-production https://comsys.rwth-aachen.de/fileadmin/papers/2020/2020-gleim-iotj-iop-interoperability.pdf IEEE 2327-4662 10.1109/JIOT.2020.2966402 1 LarsGleim JanPennekamp MartinLiebenberg MelanieBuchsbaum PhilippNiemietz SimonKnape AlexanderEpple SimonStorms DanielTrauth ThomasBergs ChristianBrecher StefanDecker GerhardLakemeyer KlausWehrle article 2019-unterberg-matclass Production Engineering 2019 11 13 13 6 743-749 internet-of-production 10.1007/s11740-019-00928-w 1 MartinUnterberg PhillipNiemietz DanielTrauth KlausWehrle ThomasBergs inproceedings 2019_pennekamp_dataflows 2019 11 11 27-38 The Internet of Production (IoP) envisions the interconnection of previously isolated CPS in the area of manufacturing across institutional boundaries to realize benefits such as increased profit margins and product quality as well as reduced product development costs and time to market. This interconnection of CPS will lead to a plethora of new dataflows, especially between (partially) distrusting entities. In this paper, we identify and illustrate these envisioned inter-organizational dataflows and the participating entities alongside two real-world use cases from the production domain: a fine blanking line and a connected job shop. Our analysis allows us to identify distinct security and privacy demands and challenges for these new dataflows. As a foundation to address the resulting requirements, we provide a survey of promising technical building blocks to secure inter-organizational dataflows in an IoP and propose next steps for future research. Consequently, we move an important step forward to overcome security and privacy concerns as an obstacle for realizing the promised potentials in an Internet of Production. Internet of Production; dataflows; Information Security internet-of-production https://www.comsys.rwth-aachen.de/fileadmin/papers/2019/2019-pennekamp-dataflows.pdf ACM Proceedings of the 5th ACM Workshop on Cyber-Physical Systems Security and PrivaCy (CPS-SPC '19), co-located with the 26th ACM SIGSAC Conference on Computer and Communications Security (CCS '19), November 11-15, 2019, London, United Kingdom London, United Kingdom November 11-15, 2019 978-1-4503-6831-5/19/11 10.1145/3338499.3357357 1 JanPennekamp MartinHenze SimoSchmidt PhilippNiemietz MarcelFey DanielTrauth ThomasBergs ChristianBrecher KlausWehrle inproceedings 2019_pennekamp_infrastructure 2019 5 8 31-37 New levels of cross-domain collaboration between manufacturing companies throughout the supply chain are anticipated to bring benefits to both suppliers and consumers of products. Enabling a fine-grained sharing and analysis of data among different stakeholders in an automated manner, such a vision of an Internet of Production (IoP) introduces demanding challenges to the communication, storage, and computation infrastructure in production environments. In this work, we present three example cases that would benefit from an IoP (a fine blanking line, a high pressure die casting process, and a connected job shop) and derive requirements that cannot be met by today’s infrastructure. In particular, we identify three orthogonal research objectives: (i) real-time control of tightly integrated production processes to offer seamless low-latency analysis and execution, (ii) storing and processing heterogeneous production data to support scalable data stream processing and storage, and (iii) secure privacy-aware collaboration in production to provide a basis for secure industrial collaboration. Based on a discussion of state-of-the-art approaches for these three objectives, we create a blueprint for an infrastructure acting as an enabler for an IoP. Internet of Production; Cyber-Physical Systems; Data Processing; Low Latency; Secure Industrial Collaboration internet-of-production https://www.comsys.rwth-aachen.de/fileadmin/papers/2019/2019-pennekamp-iop-infrastructure.pdf IEEE Proceedings of the 2nd IEEE International Conference on Industrial Cyber-Physical Systems (ICPS '19), May 6-9, 2019, Taipei, TW Taipei, TW May 6-9, 2019 978-1-5386-8500-6/19 10.1109/ICPHYS.2019.8780276 1 JanPennekamp RenéGlebke MartinHenze TobiasMeisen ChristophQuix RihanHai LarsGleim PhilippNiemietz MaximilianRudack SimonKnape AlexanderEpple DanielTrauth UweVroomen ThomasBergs ChristianBrecher AndreasBührig-Polaczek MatthiasJarke KlausWehrle inproceedings 2019-glebke-hicss-integrated 2019 1 8 7252-7261 internet-of-production,reflexes https://www.comsys.rwth-aachen.de/fileadmin/papers/2019/2019-glebke-integrated.pdf Online University of Hawai'i at Manoa / AIS Proceedings of the 52nd Hawaii International Conference on System Sciences (HICSS), Wailea, HI, USA en 978-0-9981331-2-6 10.24251/HICSS.2019.871 1 RenéGlebke MartinHenze KlausWehrle PhilippNiemietz DanielTrauth PatrickMattfeld ThomasBergs conference 2017-fink-brainlab-gmds 2017 8 29 Best Abstract Award https://www.egms.de/static/en/meetings/gmds2017/17gmds137.shtml 06.09.19 German Medical Science GMS Publishing House (2017) 62. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie e.V. (GMDS). Oldenburg GMDS 2017 17-21 September 2017 10.3205/17gmds137 1 Ina BereniceFink BerndHankammer ThomasStopinski YannicTitgemeyer RoannRamos EkaterinaKutafina Jó AgilaBitsch Stephan MichaelJonas article dombrowski-vdi VDE Positionspapier 2017 6 1 VDE - Verband der Elektrotechnik, Elektronik, Informationstechnik e.V.

Stresemannallee 15, 60596 Frankfurt am Main, Germany

IsmetAktas AlexanderBentkus FlorianBonanati ArminDekorsy ChristianDombrowski MichaelDoubrava AliGolestani FrankHofmann MikeHeidrich StefanHiensch RüdigerKays MichaelMeyer AndreasMüller Stephanten Brink NedaPetreska MilanPopovic LutzRauchhaupt AhmadSaad HansSchotten ChristophWöste IngoWolff incollection 2013-wtc-eggert-sensorcloud 2014 12 14 203-218 sensorcloud fileadmin/papers/2013/2013-wtc-eggert-sensorcloud.pdf Online Krcmar, Helmut and Reussner, Ralf and Rumpe, Bernhard Springer Trusted Cloud Computing en 978-3-319-12717-0 10.1007/978-3-319-12718-7_13 1 MichaelEggert RogerHäußling MartinHenze LarsHermerschmidt RenéHummen DanielKerpen AntonioNavarro Pérez BernhardRumpe DirkThißen KlausWehrle inproceedings 2014-bitsch-extremecom-liquid-democracy 2014 8 14 1--4 Work in Progress Paper fileadmin/papers/2014/2014-bitsch-extremecom-liquid-democracy.pdf Online Hui, Pan and Lindgren, Anders ACM Proceedings of the 6th Extreme Conference on Communication Galapagos Islands, Ecuador 6th Extreme Conference on Communication August 11-15, 2014 en 978-1-4503-2929-3 1 Jó AgilaBitsch Link AngelTchorbadjiiski KlausWehrle poster 2012-kunz-omnetpp-sequencechart 2012 3 23 5th International Workshop on OMNeT++ (OMNeT++'12), Desenzano del Garda, Italy horizon https://www.comsys.rwth-aachen.de/fileadmin/papers/2012/2012-kunz-omnetpp-sequencechart.pdf Online ICST 5th International Workshop on OMNeT++ (OMNeT++'12), Desezano del Garda, Italy en 1 GeorgKunz SimonTenbusch JamesGross KlausWehrle inproceedings 2012-wons-bosling-redmann-weingaertner 2012 1 9 131-134 https://www.comsys.rwth-aachen.de/fileadmin/papers/2012/2012-students-6lowpan-wons2012.pdf http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6138950# Online IEEE

Piscataway, NJ, USA

Proceedings of the 9th International Conference on Wireless On-demand Network Systems and Services (WONS '12), Courmayeur, Italy Courmayeur, Italy en 978-1-4577-1722-2 10.1109/WONS.2012.6152218 1 MarcelBosling TorstenRedmann JeanTekam EliasWeingaertner KlausWehrle inproceedings 2011-kunz-mascots-performance-prediction 2011 7 25 359 - 368 horizon fileadmin/papers/2011/2011-kunz-performance-prediction-mascots.pdf Online IEEE Computer Society

Los Alamitos, CA, USA

Proceedings of the 19th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS'11), Singapore Singapore 19th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems July 25-17, 2011 en 978-1-4577-0468-0 1526-7539 10.1109/MASCOTS.2011.15 1 GeorgKunz SimonTenbusch JamesGross KlausWehrle inproceedings 5646775 2010 9 778--784 Print Mautz, R., Kunz, M. and Ingensand, H. IEEE Proceedings of the 2010 International Conference on Indoor Positioning and Indoor Navigation (IPIN 2010), Zurich, Switzerland en 978-1-4244-5864-6 10.1109/IPIN.2010.5646775 OryChowaw-Liebman UtaChristoph Karl-HeinzKrempels ChristophTerwelp inproceedings DBLP:conf/winsys/Chowaw-LiebmanCKT10 2010 7 195-201 Print Rafael F. S. Caldeirinha and Mohammad S. Obaidat SciTePress WINSYS 2010 - Proceedings of the International Conference on Wireless Information Networks and Systems, Athens, Greece, WINSYS is part of ICETE - The International Joint Conference on e-Business and Telecommunications en 978-989-8425-24-9 OryChowaw-Liebman UtaChristoph Karl-HeinzKrempels ChristophTerwelp inproceedings DBLP:conf/winsys/ChristophKST10a 2010 7 189-194 Print Rafael F. S. Caldeirinha and Mohammad S. Obaidat SciTePress WINSYS 2010 - Proceedings of the International Conference on Wireless Information Networks and Systems, Athens, Greece, WINSYS is part of ICETE - The International Joint Conference on e-Business and Telecommunications en 978-989-8425-24-9 UtaChristoph Karl-HeinzKrempels Jannovon Stülpnagel ChristophTerwelp inbook 201001ThieleINTECHRatpack 2010 1 629--644 RatPack http://www.comsys.rwth-aachen.de/fileadmin/papers/2010/2010-01-Thiele-INTECH-Ratpack.pdf http://sciyo.com/articles/show/title/dynamic-wireless-sensor-networks-for-animal-behavior-research http://www.intechopen.com/articles/show/title/dynamic-wireless-sensor-networks-for-animal-behavior-research Online Domenico Campolo InTech

Vienna, Austria

32 Recent Advances in Biomedical Engineering en 978-953-7619-57-2 1 JohannesThiele Jó AgilaBitsch Link OkuaryOsechas HanspeterMallot KlausWehrle inbook 2010-kai-wifi 2010 53-109 https://www.comsys.rwth-aachen.de/typo3/file_list.php?id=%2Fvar%2Fwww%2Ffileadmin%2Fpapers%2F2010%2F# print W. Lemstra; J. Groenewegen; V. Hayes Cambridge University Press

Cambridge, UK

3 The Innovation Journey of WiFi 9780521199711 KaiJakobs WolterLemstra VicHayes BruceTuch CessLinks article 200803WeingaertnerPromox Electronic Communications of the EASST 2009 3 17 2009 1-10 In this paper, we present a preliminary glance on our framework for protocol stack monitoring using Xen (ProMoX). ProMoX uses the Xen hypervisor to virtualize entire instances of operating systems which may execute any arbitrary protocol implementation. By utilizing system virtualization for external monitoring, ProMoX can transparently inspect any protocol state and performance metrics of protocol implementations carried by a guest operating system. This way, ProMoX supports both the indentification of faults within early prototypes as well as the evaluation of new protocol designs. Accepted for publication online EASST

Kassel, Germany

Proceedings of the GI/ITG KIVS Workshop on Overlay and Network Virtualization 2009 en 1863-2122 1 EliasWeingaertner ChristophTerwelp KlausWehrle article 2009-thissen-JICWI-replication IADIS International Journal on WWW/Internet 2009 7 1 26-43 Online IADIS Press en 1645-7641 DirkThißen ThomasBrambring inproceedings 2009-thissen-GI-IMS 2009 2561-2573 Print S. Fischer, E. Maehle, R. Reischuk Gesellschaft für Informatik Lecture Notes in Informatics 154 Informatik 2009 - Im Focus das Leben, Beiträge der 39. Jahrestagung der Gesellschaft für Informatik e.V. (GI) en 978-3-88579-248-2 DirkThißen Juan MiguelEspinosa Carlín RenéHerpertz inproceedings 2009morchonpodckeyagreementwsn 2009 1 326-327 Brief Announcement Print ACM

New York, NY, USA

Proceedings of the 28th ACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing (PODC 2009), Calgary Calgary, CN 28th ACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing (PODC 2009) en 978-963-9799-59-2 10.1145/1582716.1582791 1 OscarGarcia-Morchon TobiasHeer LudoTolhuizen KlausWehrle inproceedings 200810ThieleSensors08RatPack 2008 10 26 709 -- 711 Working towards the observation of rats (and other small rodents) in the wild we have developed tools that will enable us to study their behavior using a wireless network of wearable sensor nodes. The space and weight constraints resulting from the size of the animals have led to simple but functional approaches for vocalization classification and position estimation. For the resulting data we have developed novel, delay-tolerant routing and collection strategies. These are expected to be used in a sparse, dynamic network resulting from various rats being tagged with our nodes and running around freely - an area that will eventually be too big to be covered solely by stationary data sinks. Furthermore, the system is designed to extract information on the social interactions between animals from the routing data. It currently works in an indoor environment and we are preparing it for tests in a controlled outdoor setup. RatPack fileadmin/papers/2008/2008-10-Thiele-Sensors08-RatPack.pdf http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4716540 Online IEEE

New York City, NY, USA

Proceedings of IEEE Sensors 2008, Lecce, Italy IEEE Lecce, Italy IEEE Sensors 2008 26-29 Oct. 2008 en 978-1-4244-2580-8 1930-0395 10.1109/ICSENS.2008.4716540 1 JohannesThiele OkuaryOsechas Jó AgilaBitsch Link KlausWehrle inproceedings 200808OsechasEMBC08RatPack 2008 8 20 538--541 The goal of our project is to describe the behavior of rats. For this purpose we are using wireless sensor networks, monitoring various quantities that yield important information to complement current knowledge on the behavioral repertoire of rats. So far, on the sensing and processing side we have developed innovative, minimalist approaches pointing in two directions: vocalization analysis and movement tracking. On the data collection and routing side we have adapted to the known burrowing habits of rats by developing new methods for synchronization and data aggregation under the paradigm of sporadic connectivity in a sparse, dynamic network. Animals;Behavior, Animal;Clothing;Equipment Design;Equipment Failure Analysis;Miniaturization;Monitoring, Ambulatory;Rats;Reproducibility of Results;Sensitivity and Specificity;Transducers; ratpack fileadmin/papers/2008/2008-08-Osechas-EMBC08-RatPack.pdf http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4649209 Online The Printing House

Stoughton, WI, USA

Proceedings of the 30th Annual International IEEE Engineering in Medicine and Biology Conference, Vancouver, BC, Canada IEEE EMBS Vancouver, BC, Canada Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE 20-25 Aug. 2008 en 978-1-4244-1814-5 1557-170X 10.1109/IEMBS.2008.4649209 1 OkuaryOsechas JohannesThiele Jó AgilaBitsch Link KlausWehrle inproceedings 200808BitschSIGCOMM08RatPack 2008 8 17 467--468 The goal of this pro ject is to investigate the behavior of wild living rats using sensor networks. The main challenge with respect to communication is the sparse and very dynamic network determined by the burrow dwelling behavior of rats, which makes delay tolerant data transmission schemes a necessity. The physical and computional restrictions in embedded devices make routing an interesting challenge for which we are currently developing new strategies. ratpack fileadmin/papers/2008/2008-08-Bitsch-SIGCOMM08-RatPack.pdf http://conferences.sigcomm.org/sigcomm/2008/posters.php http://www.worldcat.org/title/sigcomm-08-proceedings-of-the-2008-sigcomm-conference-and-co-located-workshops-nsdr08-wosn08-mobiarch08-netecon08-presto08-seattle-wa-usa-august-17-22-2008/oclc/300481768 Online ACM

New York City, NY, USA

ACM SIGCOMM 2008 Poster Proceedings, Seattle, WA, USA ACM Seattle, WA, USA ACM SIGCOMM 2008 August 17-22, 2008 en 978-1-60558-175-0 1 Jó AgilaBitsch Link KlausWehrle OkuaryOsechas JohannesThiele conference 200803riechemmvecluster 2008 3 18 9-13 Massively Multiplayer Online Games (MMOGs) have become increasingly popular in the last years. So far the distribution of load, caused by the players in these games, is not distributed dynamically. After the launch of a new game, the introduction of new content, during special ingame events, or also during normal operations, players tend to concentrate in certain regions of the game worlds and cause overload conditions. Therefore we propose the use of structured P2P technology for the server infrastructure of the MMOGs to improve the reliability and scalability. Previous work segmented the game work into rectangular areas; however this approach often split a group of players to different servers, causing additional overhead. This work presents a cluster-based Peer-to-Peer approach, which can be used for load balancing in MMOGs or in other virtual worlds. The system is able to dynamically adapt to the current state of the game and handle uneven distributions of the players in the game world. We show through simulation, also with traces from real online games, that the cluster-based approach performs better than the previous P2P-based systems, which split the world in rectangular areas. RWTH Aachen University - Distributed Systems Group http://www.pap.vs.uni-due.de/MMVE08/papers/proceedings.pdf http://www.pap.vs.uni-due.de/MMVE08/ Online Gregor Schiele, Daniel Weiskopf, Ben Leong, Shun-Yun Hu Proceedings of 1st International Workshop on Massively Multiuser Virtual Environments at IEEE Virtual Reality 2008 (MMVE 2008) Reno, Nevada, USA 1st International Workshop on Massively Multiuser Virtual Environments at IEEE Virtual Reality 2008 (MMVE 2008) March 8th, 2008 en 1 SimonRieche KlausWehrle MarcFouquet HeikoNiedermayer TimoTeifel GeorgCarle article 200812riecheIJAMCcluster International Journal of Advanced Media and Communication (IJAMC) 2008 2 4 351-363 In current Massively Multiplayer Online Games (MMOGs) the distribution of load is not distributed dynamically. But players tend to concentrate in certain regions of the game world and cause overload conditions. Therefore we propose the use of structured Peer-to-Peer technology for the server infrastructure of the MMOGs to improve the reliability and scalability. Previous work segmented the game work into rectangular areas but often split a group of players to different servers. This work presents a cluster-based P2P approach, which is able to dynamically adapt to the current state of the game and handle uneven distributions of players.Weshow through simulation, also with traces from real online games, that the cluster-based approach performs better than the previous P2P-based system. RWTH Aachen University - Distributed Systems Group http://www.inderscience.com/browse/index.php?journalID=67 print en 1462-4613 1 SimonRieche KlausWehrle MarcFouquet HeikoNiedermayer TimoTeifel GeorgCarle inbook 2008-thissen-LNCS-multimedia 2008 268-299 Print M. Nagl, W. Marquardt Springer Lecture Notes in Computer Science 4970 Collaborative and Distributed Chemical Engineering, From Understanding to Substantial Design Process Support en 978-3-540-70551-2 AndréSchüppen OttoSpaniol DirkThißen IngoAssenmacher EdmundHaberstroh ThorstenKuhlen inbook 2008-thissen-LNCS-management 2008 401-429 Print M. Nagl, W. Marquardt Springer Lecture Notes in Computer Science 4970 Collaborative and Distributed Chemical Engineering, From Understanding to Substantial Design Process Support en 978-3-540-70551-2 YuriBabich OttoSpaniol DirkThißen inbook 2008-thissen-LNCS-synergy 2008 519-526 Print M. Nagl, W. Marquardt Springer Lecture Notes in Computer Science 4970 Collaborative and Distributed Chemical Engineering, From Understanding to Substantial Design Process Support en 978-3-540-70551-2 SimonBecker MarkusHeller MatthiasJarke WolfgangMarquardt ManfredNagl OttoSpaniol DirkThißen inproceedings 2008-thissen-ICEB-replication 2008 155-160 CD-ROM INSTICC Proceedings of the International Conference on e-Business (ICE-B 2008), Porto, Portugal Porto, Portugal International Conference on e-Business (ICE-B 2008) en 978-989-8111-58-6 1 DirkThißen ThomasBrambring inproceedings 2008-thissen-NGMAST-IMS 2008 207-212 Print IEEE Proceedings of the 2nd IEEE Conference and Exhibition on Next Generation Mobile Applications, Services and Technologies (NGMAST 2008), Cardiff, UK Cardiff, UK Next Generation Mobile Applications, Services and Technologies (NGMAST 2008) en 978-0-7695-3333-9 1 Juan MiguelEspinosa Carlín DirkThißen inproceedings 2008-thissen-MWCN-IMS 2008 259-270 Print Springer Proceedings of the 10th IFIP International Conference on Mobile and Wireless Communications Networks (MWCN 2008), Toulouse, France Toulouse, France 10th IFIP International Conference on Mobile and Wireless Communications Networks (MWCN 2008) en 978-0-387-84838-9 1 Juan MiguelEspinosa Carlín DirkThißen inproceedings 2008-thissen-ICWI-replication 2008 283-290 CD-ROM IADIS Press Proceedings of the IADIS International Conference on WWW and Internet (ICWI 2008), Freiburg, Germany Freiburg IADIS International Conference on WWW and Internet (ICWI 2008) 2008 en 978-972-8924-68-3 1 DirkThißen ThomasBrambring inproceedings 200707BitschSNFGRatPack 2007 7 16 2007-11 95 -- 97 The goal of this project is to describe the behaviour of rats. To study this behaviour, we will resort to the use of wireless sensor networks, monitoring various quantities that yield important information to complement current knowledge on the behavioural repertoire of rats. The challenges we face include data acquisition and processing on the one hand, as rat-borne sensor nodes will need to be small enough not to interfere with the rats' own activities, thus limiting the available memory and processing capabilities. Additionally, rats spend a significant amount of time underground, making data transmission and routing a very interesting challenge, for which we are currently developing novel strategies. RatPack fileadmin/papers/2007/2007-07-Bitsch-SNFG-RatPack.pdf Print Klaus Wehrle RWTH Aachen University

Aachen, Germany

AIB 6th GI/ITG KuVS Fachgespräch "Wireless Sensor Networks", Aachen, Germany GI/ITG Fachgruppe "Kommunikation und Verteilte Systeme" Aachen, Germany 6th GI/ITG KuVS Fachgespräch "Wireless Sensor Networks" July 16-17, 2007 en 0935-3232 1 Jó AgilaBitsch Link KlausWehrle OkuaryOsechas JohannesThiele HanspeterMallot inproceedings 200606LandsiedelRatWatch 2006 6 19 1 1--2 In an attempt to employ sensor network technology for animal observation, in particular of wild rats, we identified several restrictive shortcomings in existing sensor network research, which we discuss in this paper. (Poster and Abstract) RatPack fileadmin/papers/2006/2006-06-Landsiedel-RatWatch.pdf http://www.sics.se/realwsn06/program.html Online Pedro José Marron and Thiemo Voigt SICS

Uppsala, Sweden

ACM Workshop on Real-World Wireless Sensor Networks (RealWSN) in conjunction with ACM MobiSys, Uppsala, Sweden ACM Uppsala, Sweden ACM Workshop on Real-World Wireless Sensor Networks, REALWSN'06 June 19, 2006 en 1 OlafLandsiedel Jó AgilaBitsch Link KlausWehrle JohannesThiele HanspeterMallot inproceedings 2006-thissen-ISCC-qosws 2006 371-376 Print IEEE Proceedings of the 11th IEEE Symposium on Computers and Communications (ISCC 2006), Cagliari, Sardinia, Italy Cagliari, Sardinia, Italy 11th IEEE Symposium on Computers and Communications (ISCC 2006) en 0-7695-2588-1 1 DirkThißen PimjaiWesnarat inproceedings 2006-thissen-ICWI-qosws 2006 170-177 Print IADIS Press Proceedings of the IADIS International Conference on WWW and Internet (ICWI 2006), Murcia, Spain Murcia, Spain IADIS International Conference on WWW and Internet (ICWI 2006) en 972-8924-19-4 1 DirkThißen PimjaiWesnarat article 200504landsiedelpikenergy Special Issue on Sensor Networks, PIK Journal 2005 28 2 Simulation is the de-facto standard tool for the evaluation of distributed and communication systems like sensor networks. Most simulation efforts focus on protocol- and algorithm-level issues, thus depending on the right choice and configuration of models. However, as such models commonly neglect time dependent issues, many research challenges, like energy consumption and radio channel utilization still remain. In this article we present two new tools to model and analyze sensor networks: Avrora, a fast and accurate sensor network simulator, and AEON, a novel tool built on top of Avrora, to evaluate the energy consumption and to accurately predict the lifetime of sensor networks. Avrora is a highly scalable instruction-level simulator for sensor network programs. It simulates the execution of the program down to the level of individual clock cycles, a time quantum of about 135 ns. By incorporating state of the art simulation techniques, including an efficiently maintained event queue, fast-forward through sleep-time, and parallel simulation, it can simulate entire networks of nodes in real time. AEON's energy model is based on Avrora and makes use of the cycle accurate execution of sensor node applications for precise energy measurements. Due to limited energy resources, power consumption is a crucial characteristic of sensor networks. AEON uses accurate measurements of node current draw and the execution of real code to enable accurate prediction of the actual power consumption of sensor nodes. Consequently, it prevents erroneous assumptions on node and network lifetime. Moreover, our detailed energy model allows to compare different low power and energy aware approaches in terms of energy efficiency. Thus, it enables a highly precise estimation of the overall lifetime of a sensor network. OlafLandsiedel KlausWehrle Ben LTitzer JensPalsberg book 2004-thissen-Diss 2004 Print Shaker-Verlag Trader-basiertes Dienstmanagement in offenen Dienstmärkten de 3-8265-2000-9 DirkThißen inproceedings 2004-thissen-ICWI-general 2004 2 1183-1186 Print IADIS Press Proceeding of the IADIS International Conference on WWW and Internet (ICWI 2004), Madrid, Spain Madrid, Spain IADIS International Conference on WWW and Internet (ICWI 2004) en 972-99353-0-0 1 DirkThißen inbook 2003-thissen-wiley-management 2003 363-364 Print M. Nagl, B. Westfechtel Wiley-VCH Modelle, Werkzeuge und Infrastrukturen zur Unterstützung von Entwicklungsprozessen de 3-527-27769-2 DirkThißen inproceedings 2002-thissen-PDP-loadbal 2002 253-260 Print IEEE Proceedings of the 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing (Euromicro-PDP 2002), Canary Islands, Spain Canary Islands, Spain 10th Euromicro Workshop on Parallel, Distributed and Network-based Processing (Euromicro-PDP 2002) en 0-7695-1444-8 1 DirkThißen inproceedings 2002-thissen-SAC-loadbal 2002 902-906 Print ACM Proceedings of the 2002 ACM Symposium on Applied Computing (ACM SAC 2002), Madrid, Spain Madrid, Spain ACM Symposium on Applied Computing (ACM SAC 2002) en 1-58113-445-2 1 DirkThißen inproceedings 2001-thissen-MIV-management 2001 140-145 Print WSES Press Proceedings of the WSES International Conference on Multimedia, Internet, Video Technologies (MIV 2001), Malta Malta WSES International Conference on Multimedia, Internet, Video Technologies (MIV 2001) en 960-8052-44-0 DirkThißen inproceedings 2001-thissen-DSN-critical 2001 2 B68-B69 Print IEEE Proceedings of the 2001 International Conference on Dependable Systems and Networks (DSN 2001), Fast Abstract Track, Göteborg, Sweden Göteborg, Sweden International Conference on Dependable Systems and Networks (DSN 2001) en 0-7695-1101-5 1 RolandBüschkes DirkThißen HaiYu inproceedings 2001-thissen-Africom-management 2001 Print IFIP Proceedings of the 5th International Conference on Communication Systems (Africom 2001), Cape Town, South Africa, 16 pages Cape Town, South Africa 5th International Conference on Communication Systems (Africom 2001) en 1 DirkThißen inproceedings 2000-thissen-USM-loadbal 2000 42-53 Print Springer Proceedings of the 3rd International IFIP/GI Working Conference on Trends in Distributed Systems: Towards a Universal Service Market (USM 2000), Munich, Germany Munich 3rd International IFIP/GI Working Conference on Trends in Distributed Systems: Towards a Universal Service Market (USM 2000) en 3-540-41024-4 1 DirkThißen HelmutNeukirchen inproceedings 2000-thissen-ISCC-loadbal 2000 641-646 Print IEEE Proceedings of the 5th IEEE Symposium on Computers and Communications (ISCC 2000), Antibes - Juan les Pins, France Antibes - Juan les Pins, France 5th IEEE Symposium on Computers and Communications (ISCC 2000) en 0-7695-0722-0 1 DirkThißen HelmutNeukirchen article 1999-thissen-pik-management Praxis der Informationsverarbeitung und Kommunikation (PIK) 1999 1 1 22-31 Print Saur-Verlag

München, Deutschland

de 0930-5157 ClaudiaLinnhoff-Popien SteffenLipperts DirkThißen inbook 1999-thissen-springer-management 1999 371-386 Print M. Nagl, B. Westfechtel Springer Integration von Entwicklungssystemen in Ingenieuranwendungen, Substantielle Verbesserung der Entwicklungsprozesse de 3-540-63920-9 OttoSpaniol DirkThißen BerndMeyer ClaudiaLinnhoff-Popien inproceedings 1999-thissen-DAIS-wrapper 1999 169-174 Print Kluwer Academic Publishers Proceedings of the 2nd International Working Conference on Distributed Applications and Interoperable Systems (DAIS'99), Helsinki, Finland Helsinki, Finland 2nd International Working Conference on Distributed Applications and Interoperable Systems (DAIS'99) en 0-7923-8527-6 1 SteffenLipperts DirkThißen inproceedings 1999-thissen-FMOODS-trader 1999 273-280 Print P. Ciancarini, A. Fantechi, R. Gorrieri Kluwer Academic Publishers Formal Methods for Open Object-Based Distributed Systems 3rd INternational Conference on Formal Methods for Open Object-Based Distributed Systems (FMOODS'99), Florence, Italy en 0-7923-8429-6 1 ClaudiaLinnhoff-Popien DirkThißen article 1997-thissen-IM-corba Industrie Management 1997 6 Print de OttoSpaniol BerndMeyer DirkThißen inproceedings 1997-thissen-edoc-corba 1997 129-137 Print IEEE Proceedings of the 1st International Enterprise Distributed Object Computing Workshop (EDOC'97), Gold Coast, Australia Gold Coast, Australia 1st International Enterprise Distributed Object Computing Workshop (EDOC'97) en 0-8186-8031-8 1 DirkThißen ClaudiaLinnhoff-Popien SteffenLipperts inproceedings 1997-thissen-iwqos-trader 1997 225-236 Print Chapman & Hall 5th IFIP International Workshop on Quality of Service (IWQOS'97), New York, USA New York, USA 5th IFIP International Workshop on Quality of Service (IWQOS'97) en 0412809400 1 ClaudiaLinnhoff-Popien DirkThißen inproceedings 1997-thissen-kivs-trader 1997 236-251 Print Springer Proceedings der 10. GI-Fachtagung Kommunikation in Verteilten Systemen (KiVS'97), Braunschweig, Germany Braunschweig 10. GI-Fachtagung Kommunikation in Verteilten Systemen (KiVS'97) de 3-540-62565-8 1 PeterReichl ClaudiaLinnhoff-Popien DirkThißen inproceedings 1996-thissen-dccn-trader 1996 114-123 Print Proceedings of the 1st International Conference on Distributed Computer Communication Networks (DCCN'96), Tel Aviv, Isreal Tel Aviv, Isreal 1st International Conference on Distributed Computer Communication Networks (DCCN'96) en PeterReichl DirkThißen ClaudiaLinnhoff-Popien inproceedings 1996-thissen-treds-trader 1996 200-213 Print Springer Proceedings of the 1st International Workshop on Trends in Distributed Systems: CORBA and Beyond (TreDS'96), Aachen Aachen 1st International Workshop on Trends in Distributed Systems: CORBA and Beyond (TreDS'96) en 3-540-61842-2 1 DirkThißen ClaudiaLinnhoff-Popien