Chair of Computer Science II - Software Engineering

Rouven Krebs

Dr.-Ing. Rouven Krebs

SAP Research Karlsruhe
Vincenz-Prießnitz-Straße 1
76131 Karlsruhe

Phone: +49 6227 7-52542
Email: rouven.krebs@sap.com

Research Interests

Main research areas:

  • Performance and QoS enforcement
  • Distributed Systems
  • Software Architectures and Patterns

Technology domains:

  • Cloud Computing (PaaS/SaaS)
  • Multi-tenancy
  • Enterprise on Demand solutions

List of all publications: Rouven Krebs


The 4CaaSt project aims to create an advanced PaaS Cloud platform which supports the optimized and elastic hosting of Internet-scale multi-tier applications.

The goal of CloudScale is to aid service providers in analysing, predicting and resolving scalability issues, i.e., support scalable service engineering. The project extends existing and develops new solutions that support the handling of scalability problems of software-based services.

Selected Reviewer Activities

Conferences and Journals

  • International Symposium on Cluster, Cloud and Grid Computing, IEEE/ACM, 2014
  • International Conference on Simulation Tools and Techniques, ACM, 2014, 2013
  • International Conference on the Quality of Software Architectures, ACM, 2013, 2012
  • International Conference on Autonomic Computing, ACM, 2013
  • International Conference on Performance Engineering, ACM, 2013
  • Winter Simulation Conference, 2012
  • SIGMETRIC, ACM, 2012
  • Transactions on Dependable and Secure Computing, IEEE, 2013


Supervised Theses:

Bernhard Neu, Automatische Skalierung von Cloud Systemen unter Verwendung eines wissensbasierten Systems. Bachelor's thesis, Hochschule Karlsruhe - Technik und Wirtschaft, 2012.

Manuel Lösch, Performance Isolation and QoS Differentiation in a Multi-Tenant Aware PaaS. Master's thesis, University of Mannheim, 2012.

Undral Ganbat, Benchmark Development for Performance Isolation in Multi-Tenant Environments. Master's thesis, Hochschule Heilbronn, 2012.

Nadia Ahmed, Multi-Tenant Resource Demand Estimation for Performance Isolation. Master's thesis, Karlsruhe Institute of Technology (KIT), 2013.

Arpit Mehta, Implementation and Evaluation of Algorithms and Methods for ensuring Performance Isolation in Multi-Tenant PaaS/SaaS. Master's thesis, Universität Kaiserslautern, 2013.

Mehran Saliminia, Multi-Tenant Performance Models to Guarantee Performance Isolation. Master's thesis, Karlsruhe Institute of Technology (KIT), 2013.


Resume/Curriculum Vitae

since Jun 2011

Ph.D. student; working at SAP Research, Karlsruhe, Germany


Master's Thesis "Combination of measurement and model based approaches for performance prediction in service oriented systems", in cooperation with SAP Research, Karlsruhe, Germany

2009 - 2010 Master's Program Computer Science, University of Applied Science, Karlsruhe, Germany
2009 Bachelor's Thesis "Approximative
Lösungsbewertung zeichenartiger Antworten im
Bereich computerbasierte Tests", in cooperation with Fraunhofer IITB, Karlsruhe, Germany
2006 - 2009

Bachelor's Program Computer Science, University of Applied Sciene, Karlsruhe, Germany

2006 - 2010

IT Sepecialist working at SAP AG as developer in the department ERP HCM with specialisation in E-Learning applications, Walldorf, Germany

2003 - 2006

Vocational Training as Fachinformatiker Anwendungsenwicklung (IT technican specialising in application development) at the SAP AG


Abitur at the technical oriented Gymnasium Berufsbildende Schule Technik 1 Ludwigshafen