For most up-to-date information on my current work visit my Homepage @ University of Karlsruhe (TH)

 Former Homepage @ University of Cambridge

• Affiliations
• Research Interests
• Professional Functions & Memberships
• Projects
• Teaching
• Publications
• Supervised Theses

News

• QuaSM 2008 CFP - International Workshop of Quality Management of Service, Sydney, Australia, December 10-12, 2008.
  
• SIPEW 2008 CFP - SPEC International Performance Evaluation Workshop 2008, Darmstadt, Germany, June 27-28, 2008.
  
• SSCC 2008 CFP - SIWN International Conference on Self-organization and Self-management in Computing and Communications, Glasgow, UK, July 21-24, 2008.
• QoSA 2008 CFP - Fourth International Conference on the Quality of Software-Architectures "Models and Architectures", Karlsruhe, Germany, October 14-17, 2008.
• EPEW 2008 CFP - 5th European Performance Engineering Workshop, Palma de Mallorca, Spain, September 24-25, 2008.

Affiliations

• Universität Karlsruhe (TH)
  Institute for Program Structures and Data Organization (IPD)
  DFG Research Fellow
• Technische Universität Darmstadt
  Databases and Distributed Systems Group
  Research Associate

Research Interests

Main research areas:

• System Modeling and Simulation
• Software Performance Engineering
• Run-Time Performance and Resource Management
• Autonomic Computing and Self-Management
• Energy Efficient Computing
• Benchmarking and Experimental Performance Analysis
• System Sizing and Capacity Planning
• Performance Tuning and Optimization
• Component-based Software Engineering

Main application domains:

• Service-oriented Architectures (SOA)
• Distributed Component-based Systems
• Event-based Systems and Message-oriented Middleware
• Enterprise Java
• Grid Computing Environments
• Sensor-based Middleware
• RFID and EPCglobal-related Technologies
• Open-Source Middleware Platforms

Professional Functions & Memberships

• SPEC - "Standard Performance Evaluation Corporation"
  Primary Representative of Technische Universität Darmstadt to the OSG (since 2002)
  Release Manager of the Java Subcommittee (since October 2003)
• Association for Computing Machinery
  Member
• Institute of Electrical and Electronics Engineers, Inc.
  IEEE Computer Society
  Member
• Gesellschaft für Informatik e.V.
  Member

Projects

Current

• SPECjms2007: A Benchmark for Enterprise Message-Oriented Middleware
  Project at SPEC - Standard Performance Evaluation Corporation.
  Role: Project Manager, Benchmark Architect and Working Group Chair
  Press Coverage: @SPEC, IT Jungle, @SYS-CON, @LexisNexis, @Innovations Report, @TU Darmstadt, etc.
• QPME - Queueing Petri Net Modeling Environment
  Role: Project Manager and Development Lead
• Performance and Scalability Analysis of Netweaver's JMS Provider
  Project of TU Darmstadt with SAP AG, Walldorf, Germany.
  Role: Consultant
• Autonomic Quality-of-Service Management in Grid Environments
  Joint project with Technical University of Catalonia (UPC) and Barcelona Supercomputing Center (BSC).
• A Transport Information Monitoring Environment (TIME): Event Architecture and Context Management (TIME-EACM)
  Project at Cambridge University.
  Role: Consultant

Past

• Performance Modeling and Evaluation of Event-based Systems
  Project funded by the German Research Foundation (DFG), February 2006 - May 2008.
  Role: Principal Investigator
• NewOps IT Operations Concept - Infrastructure Design and Sizing Methodology
  Project with Deutsche Post AG, 2005.
  Role: Consultant
• The SPECjbb2005 Project
  Project at SPEC - Standard Performance Evaluation Corporation, May 2004 - June 2005.
  Role: Release Manager
• Performance and Scalability Analysis of SAP Web Application Server (Netweaver)
  Project with SAP AG, Walldorf, Germany, April 2004 - March 2005.
  Role: Project Manager
• The SPECjAppServer2004 Project
  Project at SPEC - Standard Performance Evaluation Corporation, December 2002 - April 2004.
  Role: Release Manager and Lead Developer
• MALL2000 - "Mall for Online Business beyond the Year 2000"
  Project No. 977041 of the INCO Copernicus Program funded by the European Commission.
  Participation during the first half of the project as head of the Bulgarian Mall2000 development team, one of the lead architects and project web master.
• Extraction, Transformation and Integration of Reporter Data from Disparate Sources
  Project with Deutsche Welle, Bonn, Germany, Autumn 1999.
  Role: Chief Developer