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Dive into the research topics where Jonas Repschläger is active.

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Featured researches published by Jonas Repschläger.


Praxis Der Wirtschaftsinformatik | 2010

Cloud Computing: Definitionen, Geschäftsmodelle und Entwicklungspotenziale

Jonas Repschläger; Danny Pannicke; Rüdiger Zarnekow

ZusammenfassungArchitekturparadigmen der IT stehen stets im Spannungsfeld von Zentralisierung und Dezentralisierung. Im Rahmen des Cloud Computing vollzieht sich aktuell eine Hinwendung zu stärker zentralisierten Architekturen. Die Anwender von IT-Dienstleistungen werden dabei weitgehend von der kapitalintensiven Beschaffung der Hard- und Software sowie der Vorhaltung eigener Personalressourcen befreit. Im Modell des Cloud Computing werden IT-Dienstleistungen bedarfsorientiert auf Basis eines Mietmodells bezogen. Cloud Computing ermöglicht es Unternehmen, auf Basis skalierbarer, lose gekoppelter IT-Ressourcen und variabler Kostenmodelle ein hohes Maβ an Flexibilität zu erreichen.


congress on evolutionary computation | 2011

Target Dimensions of Cloud Computing

Stefan Wind; Klaus Turowski; Jonas Repschläger; Rüdiger Zarnekow

Over the recent years, Cloud Computing has evolved as a new computing paradigm which aims at providing high-quality, customized and dynamic computing services. Despite initial positive results, it is challenging in theory and practice to find an appropriate provider matching the individual requirements. For doing this, the customer has to be clear about his individual targets that should be achieved with cloud computing. That is quit challenging because there are a lot more dimensions to consider than costs and flexibility. Moreover, the selection process is complicated by a number of new entrants as well as offers of non-transparent services, which sometimes differ significantly. In this paper, target dimensions for cloud computing were developed, based on an international literature analysis and interviews with experts. In special, they have been explained using Infrastructure as a Service here. These dimensions should help enterprises to become clear about their requirements on cloud computing and do further steps, like classifying appropriate providers. The relevance of the target dimensions was evaluated with an additional survey conducted among IT managers.


ieee international conference on cloud networking | 2014

Enabling location-based policies in a healthcare cloud computing environment

Sebastian Zickau; Dirk Thatmann; Tatiana Ermakova; Jonas Repschläger; Rüdiger Zarnekow; Axel Küpper

In a multi-stakeholder cloud computing environment, data access control is of essential importance. Nowadays, it is usually handled in and deployed by every single cloud service on its own which makes the configuration of fine-grained access privileges cumbersome and economically expensive. In this paper, we introduce a novel cloud ecosystem architecture featuring an overall lightweight data access control model. This model is enabling data access policies based on location information of service consumer devices. We apply our architecture in the sensitive healthcare domain, which itself comprises multiple parties with complex data access privileges. Here, we define high-level requirements driven from current data protection regulations and guidelines as well as practice requirements in this area, which we address in the design of our architecture. We implement and test the main components. The results demonstrate the feasibility of our architecture and the applicability of our approach even in the healthcare application domain.


Praxis Der Wirtschaftsinformatik | 2012

IT-Servicemanagement im Cloud Computing

Thorsten Pröhl; Jonas Repschläger; Koray Erek; Rüdiger Zarnekow

ZusammenfassungenCloud Computing stellt einen fundamentalen Trend in der IT-Branche dar, der bei IT-Entscheidern sowohl positive als auch kritische Reaktionen hervorruft. Insbesondere werden der praktische Nutzen, die Datensicherheit sowie das für Unternehmen spezifische Anwendungsszenario nach wie vor kontrovers diskutiert. Der Bezug von Cloud-Services kann weitreichende Prozessveränderungen im IT-Servicemanagement (ITSM) zur Folge haben. Dabei ist aus Anwendersicht vor allem die zunehmende Bedeutung der Phasen Service Strategy und Service Design hervorzuheben. Demgegenüber ist zu erwarten, dass im Rahmen des Cloud Computing die Phasen Service Transition und Service Operation für die Leistungsabnehmer an Relevanz verlieren. Derweilen bleibt das Continual Service Improvement unverändert wichtig.


Archive | 2016

Analyse der Wohnungsbewertungen von Airbnb

Daniel Schlesinger; Rüdiger Zarnekow; Jonas Repschläger

2 Einleitung 3 Studienumfang und -methodik 4 Studienergebnisse 4 Haufigkeitsverteilungen 4 Korrelationen der Bewertungskriterien 8 Diskussion 9 Zusammenfassung 12 Quellverzeichnis 13 Analyse der Wohnungsbewertungen von Airbnb – Seite 2


european conference on information systems | 2012

CLOUD REQUIREMENT FRAMEWORK: REQUIREMENTS AND EVALUATION CRITERIA TO ADOPT CLOUD SOLUTIONS

Jonas Repschläger; Rüdiger Zarnekow; Stefan Wind; Klaus Turowski


federated conference on computer science and information systems | 2012

Standardization approaches within Cloud Computing: Evaluation of infrastructure as a service architecture

Stine Labes; Jonas Repschläger; Rüdiger Zarnekow; Alexander Stanik; Odej Kao


Emisa Forum | 2011

Developing a Cloud Provider Selection Model

Jonas Repschläger; Stefan Wind; Rüdiger Zarnekow; Klaus Turowski


european conference on information systems | 2014

SECURING MEDICAL SAAS SOLUTIONS USING A NOVEL END-TO-END ENCRYPTION PROTOCOL

Mathias Slawik; Tatiana Ermakova; Jonas Repschläger; Axel Küpper; Ruediger Zarnekow


GI-Jahrestagung | 2011

Konzeption einer community cloud für eine ressourceneffiziente IT- leistungserstellung.

Jonas Repschläger; Koray Erek; Marc Wilkens; Danny Pannicke; Rüdiger Zarnekow

Collaboration


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Rüdiger Zarnekow

Technical University of Berlin

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Danny Pannicke

Technical University of Berlin

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Axel Küpper

Technical University of Berlin

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Tatiana Ermakova

Technical University of Berlin

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Klaus Turowski

Otto-von-Guericke University Magdeburg

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Koray Erek

Technical University of Berlin

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Mathias Slawik

Technical University of Berlin

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Sebastian Zickau

Technical University of Berlin

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Thorsten Pröhl

Technical University of Berlin

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