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Auflistung nach Schlagwort "Resilience"

1 - 10 von 11
  • Zeitschriftenartikel
    Crisis and Change: Fallstudie zur Untersuchung der Resilienz als Erfolgsfaktor von Partizipationsplattformen während der Coronakrise
    (HMD Praxis der Wirtschaftsinformatik: Vol. 58, No. 4, 2021) Butt, Jan-Hendrik; Scholz, Felix; Abel, Pascal
    Die Coronakrise trifft große Teile der Weltwirtschaft hart und reduziert das gesellschaftliche Leben stark. Durch die stark einschränkenden Maßnahmen zur Minimierung der sozialen Kontakte wäre auch ein Rückgang des Interesses an der gemeinschaftlichen Gestaltung der städtischen Umgebung zu erwarten. Jedoch ist das Gegenteil der Fall. Partizipationsplattformen für die Gestaltung des urbanen Raumes haben sich verändert, um der Krise zu begegnen und Antworten auf die aktuellen Herausforderungen zu finden. Dieser Beitrag untersucht, weshalb Partizipationsplattformen trotz oder durch die Coronakrise erfolgreicher werden und möchte erforschen, welche Ursachen es für diese Resilienz gibt. Dafür dienen 26 Partizipationsplattformen im urbanen Raum als Untersuchungsgrundlage. Alle Plattformen bieten das höchste Partizipationslevel der Selbstverwaltung an, sodass Bürger*innen selbstständig ihren Lebensraum gestalten können. Anhand von drei Fallstudien werden Ausdauerfähigkeit, Anpassungsfähigkeit und Wandlungsfähigkeit der Plattformen beschrieben. Als Ursachen konnten dabei unter anderem die enge Verbundenheit zu den Projektinitiatoren und das starke gesellschaftliche Verantwortungsgefühl sowie flache Hierarchien und eine gelebte Fehlerkultur herausgearbeitet werden. The corona crisis is hitting large parts of the global economy hard and severely reducing social life. The severely restrictive measures to minimize social contacts would also lead to a decrease in interest of the shared design of the urban environment. However, the opposite is true. Participation platforms for the design of urban space have changed in order to face the crisis and find answers to the current challenges. This article examines why participation platforms are becoming more successful despite or due to the corona crisis and would like to research the causes of this resilience. For this purpose, 26 participation platforms in urban space serve as a basis for research. All platforms offer the highest level of participation in self-governance, so that citizens can design their living space independently. On the basis of three case studies, the persistence, adaptability and transformability of the platforms are described. The reasons for this were, among other things, the close ties to the project initiators and the strong sense of social responsibility as well as flat hierarchies and a lived error culture.
  • Zeitschriftenartikel
    Datenbasierte Resilienzsteigerung von IT-Services
    (HMD Praxis der Wirtschaftsinformatik: Vol. 56, No. 2, 2019) Möhring, Michael; Keller, Barbara; Schmidt, Rainer
    Die Zuverlässigkeit der IT-Services ist die Voraussetzung für die reibungslose Ausführung von Geschäftsprozessen und entscheidet so wesentlich über den wirtschaftlichen Erfolg von Unternehmen. Um den Ausfall von IT-Services zu vermeiden, ist es wichtig ihre Resilienz zu erhöhen also ihre Fähigkeit den Ausfall von untergeordneten IT-Services abzufangen und nach einem erfolgten Ausfall zum Normalbetrieb zurückzukehren. Bisher wurden resilienzsteigernde Maßnahmen nur manuell initiiert. Datenbasierte Ansätze ermöglichen dies zu automatisieren und die Resilienz von IT-Services zu steigern. Daher wird mittels einer methodisch durchgeführten Fallstudie Erfahrungen und Einblicke in die Umsetzung eines datenbasierten Systems zur IT-Service-Resilienzsteigerung ermittelt. Die Fallstudie zeigt, dass eine schnellere Erkennung von resilienzrelevanten Ereignissen erreicht wird und die Erfassungstiefe der relevanten Ereignisse deutlich gesteigert werden kann. Zusammen mit der automatischen Veranlassung resilienzsteigernder Maßnahmen kann eine deutliche Steigerung der Resilienz der IT-Services erreicht werden, die sich auf die Zuverlässigkeit der unterstützten Geschäftsprozesse deutlich positiv auswirken kann. The reliability of IT services is the prerequisite for the smooth execution of business processes and is thus a key factor in the economic success of companies. In order to avoid the failure of IT services, it is important to increase their resilience, i. e. their ability to intercept the failure of subordinate IT services and return to normal operation after a failure. So far resilience-increasing measures were initiated only manually. Data-based approaches make it possible to automate and to increase the resilience of IT-services. Therefore, experiences and are captured by means of a methodically accomplished case study on the conversion of a data-based system for the improvement of resiliency of IT-services. The case study shows that a faster recognition of events is reached and the collection depth of the relevant events is clearly increased. Together with the automatic a clear increase of the resiliency of the IT-services was achieved, improving the reliability of the supported business processes clearly.
  • Konferenzbeitrag
    Dealing with Hardware-related Disturbances in Organic Computing Systems
    (INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft (Workshop-Beiträge), 2019) Görlich-Bucher, Markus
    The ability to withstand disturbances while remaining functioning in a desired way is regarded as a crucial element in the field of Organic Computing. However, current approaches to self-healing and robustness fail in considering hardware-related breakdowns. These disturbances differ from software-sided disturbances in various aspects: They persist until being repaired, therefore their removal necessitates maintenance actions performed by human repair workers. Furthermore, they may be predicted to a certain degree. In this article, we formulate a problem statement and various requirements an OC system must fulfil in order to increase its robustness against hardware-related disturbances. Furthermore, we present a working plan for a PhD project concerning the investigation of several aspects of the previously motivated problem statement.
  • Zeitschriftenartikel
    Digitalisierung und Resilienz in der Food Supply Chain
    (HMD Praxis der Wirtschaftsinformatik: Vol. 58, No. 4, 2021) Hofmeier, Manfred; Lechner, Ulrike
    Im durch das Bundesministerium für Bildung und Forschung und das österreichische Bundesministerium für Landwirtschaft, Regionen und Tourismus geförderten Forschungsprojekt NutriSafe wurde die Studie „NutriSafe Monitor – Resilienz und Blockchain-Technologie in Lebensmittelproduktion und -logistik“ durchgeführt. Entscheider in Unternehmen der Lebensmittelproduktion und -logistik im deutschsprachigen Raum wurden in einer Online-Umfrage zu den Themen Resilienz, Digitalisierung, Transparenz und Produktrückverfolgung sowie Chancen und Risiken von Blockchain-Technologie befragt. Der vorliegende Beitrag präsentiert die Ergebnisse der Online-Umfrage zur Resilienz und erweitert diese um bivariate Analysen zur Resilienz im Hinblick auf die Digitalisierung. Resilienz wird hier verstanden als Komplex aus Robustheit und Anpassungsfähigkeit und flexible Reaktion auf Störungen und disruptive Veränderungen. Bisher ist wenig über das Thema Resilienz in kleinen und mittleren Unternehmen der Lebensmittelproduktion und -logistik bekannt. Der vorliegende Beitrag füllt diese Lücke und analysiert Faktoren der Resilienz (Unterbrechungen in der Wertschöpfungskette, Störungen im Unternehmen, Verwundbarkeit und Bewältigungskapazitäten), Indikatoren der Resilienz sowie die Zusammenhänge mit dem Digitalisierungsgrad in diesen Unternehmen. Ziel der Analyse ist ein Lagebild der Resilienz und der Digitalisierung in Lebensmittelproduktion und -logistik und eine Grundlage zu schaffen, um mögliche Auswirkungen voranschreitender Digitalisierung auf die Lebensmittelversorgung abschätzen zu können. In the NutriSafe research project, funded by the German Federal Ministry of Education and Research and the Austrian Federal Ministry for Agriculture, Regions and Tourism, the study “NutriSafe Monitor—Resilience and Blockchain Technology in Food Production and Logistics” was conducted. Decision-makers from companies in food production and logistics in German-speaking countries were surveyed online on the topics of resilience, digitization, transparency and product traceability as well as the opportunities and risks of blockchain technology. This paper presents the results of the survey on resilience and extends the data analysis by bivariate analyses on the topic of resilience with regard to digitization. Resilience is understood here as a complex of robustness and adaptability or flexible reaction to disruptive events. Until now, little is known about the topic of resilience in small and medium-sized enterprises in food production and logistics. The present paper fills this gap and analyses factors of resilience (supply chain interruptions, disruptions within the company, vulnerability and coping capacities) as well as correlations with the degree of digitization in these companies. The aim of this analysis is to get a picture of resilience and digitization in food production and logistics and to create a basis to estimate possible effects of the proceeding digitization on food supply.
  • Textdokument
    In Microservices We Trust — Do Microservices Solve Resilience Challenges?
    (Tagungsband des FB-SYS Herbsttreffens 2019, 2019) Hilbrich, Marcus
    Resilience is an open challenge. In this paper we look into microservices – a concept that argues to be resilient. We look into the definition of microservices and argue whether the definition provides the promised advantages regarding to resilience.
  • Konferenzbeitrag
    Resilience in Security and Crises through Adaptions and Transitions
    (INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft (Workshop-Beiträge), 2019) Kalle, Timo; Kaufhold, Marc-André; Kuntke, Franz; Reuter, Christian; Rizk, Amr; Steinmetz, Ralf
    Currently, there is a tremendous number of communication technology and systems in use. Not only in the private user space, but also in business operations and societal areas, they are deeply involved: Ranging from messaging services or navigation over (critical) SCADA systems to whole digital cities and communities. Consequently, the view on communication networks in security and particularly crisis scenarios becomes inevitable. This paper examines the notions of resilience, adaption and transition within communication networks with a specific focus on crises. Based on a structured literature review, the fundamentals of resilience and communication networks are introduced. The paper then discusses the characteristics of (a) evolvability, accessibility, usability and diversity as well as (b) self-organization, -management, -optimization, - monitoring, -healing and -protection for communication network resilience. Finally, it outlines challenges and potentials of communication network resilience based in the use cases of security and crises.
  • Konferenzbeitrag
    Simulating Microservice-based Architectures for Resilience Assessment Enriched by Authentic Container Orchestration
    (Software Engineering 2024 (SE 2024), 2024) Frank, Sebastian; Straesser, Martin; Wagner, Lion; Haas, Patrick; Hakamian, Alireza; Kounev, Samuel; van Hoorn, André
  • Zeitschriftenartikel
    Sol: An Agent-Based Framework for Cyber Situation Awareness
    (KI - Künstliche Intelligenz: Vol. 26, No. 2, 2012) Bradshaw, Jeffrey M.; Carvalho, Marco; Bunch, Larry; Eskridge, Tom; Feltovich, Paul J.; Johnson, Matt; Kidwell, Dan
    In this article, we describe how we augment human perception and cognition through Sol, an agent-based framework for distributed sensemaking. We describe how our visualization approach, based on IHMC’s OZ flight display, has been leveraged and extended in our development of the Flow Capacitor, an analyst display for maintaining cyber situation awareness, and in the Parallel Coordinates 3D Observatory (PC3O or Observatory), a generalization of the Flow Capacitor that provides capabilities for developing and exploring lines of inquiry. We then introduce the primary implementation frameworks that provide the core capabilities of Sol: the Luna Software Agent Framework, the VIA Cross-Layer Communications Substrate, and the KAoS Policy Services Framework. We show how policy-governed agents can perform much of the tedious high-tempo tasks of analysts and facilitate collaboration. Much of the power of Sol lies in the concept of coactive emergence, whereby a comprehension of complex situations is achieved through the collaboration of analysts and agents working together in tandem. Not only can the approach embodied in Sol lead to a qualitative improvement in cyber situation awareness, but its approach is equally relevant to applications of distributed sensemaking for other kinds of complex high-tempo tasks.
  • Konferenzbeitrag
    Towards Enabling Level 3A AI in Avionic Platforms
    (Software Engineering 2023 Workshops, 2023) Zaeske, Wanja; Brust, Clemens-Alexander; Lund, Andreas; Durak, Umut
    The role of AI evolves from human assistance over human/machine collaboration towards fully autonomous systems. As the push towards more autonomy subsequently removes the reliance on a human overseeing the system, means of self supervision must be provided to enable safe operations. This work explores dynamic reconfiguration to provide resilience to unforeseen environmental conditions that exceed the systems capabilities, but also against normal faults. We focus on providing the means for this in an ARINC 653 compliant environment, since we target avionics platforms. Scheduling and communication are two major aspects of dynamic reconfiguration. Hence, we discuss multiple respective implementation approaches. The third pillar of reconfiguration, the process of deciding when to reconfigure is also investigated. Combining these yields the building blocks for a self-supervising system.
  • Zeitschriftenartikel
    Towards Resilient Critical Infrastructures – Motivating Users to Contribute to Smart Grid Resilience
    (i-com: Vol. 20, No. 2, 2021) Egert, Rolf; Gerber, Nina; Haunschild, Jasmin; Kuehn, Philipp; Zimmermann, Verena
    Smart cities aim at improving efficiency while providing safety and security by merging conventional infrastructures with information and communication technology. One strategy for mitigating hazardous situations and improving the overall resilience of the system is to involve citizens. For instance, smart grids involve prosumers—capable of producing and consuming electricity—who can adjust their electricity profile dynamically (i. e., decrease or increase electricity consumption), or use their local production to supply electricity to the grid. This mitigates the impact of peak consumption periods on the grid and makes it easier for operators to control the grid. This involvement of prosumers is accompanied by numerous socio-technical challenges, including motivating citizens to contribute by adjusting their electricity consumption to the requirements of the energy grid. Towards this end, this work investigates motivational strategies and tools, including nudging, persuasive technologies, and incentives, that can be leveraged to increase the motivation of citizens. We discuss long-term and side effects and ethical and privacy considerations, before portraying bug bounty programs, gamification and apps as technologies and strategies to communicate the motivational strategies to citizens.