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Auflistung nach Schlagwort "Quality of Service"

1 - 2 von 2
  • Konferenzbeitrag
    Bounded Privacy: Formalising the Trade-Off Between Privacy and Quality of Service
    (SICHERHEIT 2018, 2018) Hartmann, Lukas
    Many services and applications require users to provide a certain amount of information about themselves in order to receive an acceptable quality of service (QoS). Exemplary areas of use are location based services like route planning or the reporting of security incidents for critical infrastructure. Users putting emphasis on their privacy, for example through anonymization, therefore usually suffer from a loss of QoS. Some services however, may not even be feasible above a certain threshold of anonymization, resulting in unacceptable service quality. Hence, there need to be restrictions on the applied level of anonymization. To prevent the QoS from dropping below an unacceptable threshold, we introduce the concept of Bounded Privacy, a generic model to describe situations in which the achievable level of privacy is bounded by its relation to the service quality. We furthermore propose an approach to derive the optimal level of privacy for both discrete and continuous data.
  • Textdokument
    “HySLAC” – A Conceptual Model for Service Level Agreement Compliance in Hybrid Cloud Architectures
    (INFORMATIK 2020, 2021) Seifert, Michael; Kuehnel, Stephan
    Cloud computing provides IT infrastructures and services via networks, and it enables economic potentials for end users as well as a focus on core competencies. In addition to its extensive potentials, cloud computing in general, and hybrid cloud computing in particular, pose new challenges in the negotiation and formulation of Service Level Agreements, as well as in the monitoring of and compliance with contractual requirements. An understanding of cloud service and deployment models, perspectives, roles, and contractual terms is essential for a successful and compliant adoption of hybrid clouds. Consequently, this paper proposes the novel HySLAC model, focusing on service level agreement compliance in hybrid cloud architectures. Based on eight model requirements and a systematic literature review, the HySLAC model was conceptualized with UML 2.0. It comprises eight UML classes and five associated enumerations, and it is instantiated by means of a case study. The model offers scientific and practical application capabilities for the analysis of service components as well as hybrid cloud service compositions, and it opens up potentials for decision support.