» Curriculum Vitae:

Philipp completed his compulsory education at BORG Hartberg. After putting his military service behind him he studied Business Informatics (dt.: Wirtschaftsinformatik) and Information and Knowledge Management at Vienna University of Technology and University of Vienna. During his master's study he worked on a variety of software engineering projects for Siemens PSE, Joanneum Research and Octapharma Wien. Furthermore, he gained hands-on teaching experience as teaching assistent (dt.: Tutor) for numerous University courses on UML, XML, Information Systems, Logic-Oriented Programming and Web Services. From August 2005 to July 2006 he worked on the Celtic research project Madeira in the area of P2P network management. After he graduated in autumn 2007 he worked as a research assistant for the Distributed Systems Group at Vienna University of Technology. With beginning of 2009 Philipp became a university assistant (Univ.Ass.) in the same group until december 2012. Currently, Philipp works as apostdoctoral researcher. He completed his doctoral studies in autumn 2011 with a dissertation on 'Preventing Violations of Service Level Agreements in Composed Services using Self-Adaptation' (link, second examiner was Prof. Fabio Casati, University of Trento). In terms of teaching he is currently primarily engaged in the master-level courses Advanced Internet Techniques and Technologies for Distributed Systems.

» Technical Interests:

My research interests include general issues of distributed computing, especially service-oriented computing, SOA, Web Services, cloud computing, P2P computing and network management. I am furthermore very interested in security issues of distributed systems, and general questions of object-oriented programming in Java. In the course of my study and career I have also built up a solid interest in heuristic optimization (evolutionary algorithms, anyone?) and countless other more 'exotic' topics of computer science.

» Scientific Projects:

Audit 4 SOAs(May 2011 - ongoing) -- Audit 4 SOAs is a single project (Einzelprojekt) of the Austrian FWF, and researches testing support for complex SOAs. In particular, the project is focused on a systematic testing and diagnosis approach of complex SOAs with the help of real world quality environments. Indenica(October 2010 - ongoing) -- Indenica is a 7th Framework Programme EC project aiming at "a major contribution to the Future Internet by providing Virtual Service Platforms as a novel domain-specific approach to create service-based applications. In particular, this approach will ease the development of domain-specific, service-based applications by resolving the quality, interface, and technology fragmentation that can be observed in todays service platforms." Please refer to the Indenica project web page for details. S-Cube (March 2008 - February 2012) -- S-Cube, the European Network of Excellence in Software Services and Systems, will establish an integrated, multidisciplinary, vibrant research community. This will enable Europe to lead the software-services revolution, thereby helping shape the software-service based Internet which is the backbone of our future interactive society (see the S-Cube homepage). S-Cube is a 4-year EU-sponsored research project, with the goal of integrating european research effords in the area of service-based systems. VReSCO (2007 - 2011) -- In the VReSCO project we are striving to develop a SOA infrastructure that solves a number of challenges that we currently experience in service-oriented computing. Currently we are thinking about QoS aspects, service metadata, REST integration, notifications, service versioning as well as general decoupling of service providers and consumers. Contact me if you are interested in doing practical work ('Praktikum') or your master's thesis in one of the topics mentioned (or any other topic that you may find suitable in the context of a next-generation SoC infrastructure). DAIOS (2007 - 2009) -- DAIOS is a Web service framework focussed on dynamic and stubless invocation of SOAP and REST services using a message-based interface. The idea of DAIOS is to decouple clients from the services they are using by abstracting from as many details of the target services as possible. The first version of DAIOS has been developed within my thesis. Since then I have released a first (Java-based) version of the research prototype using Google Code (link). We also have a .NET version of DAIOS available (which has not yet been released for time reasons). Celtic Madeira (2006 - 2007) -- The goal of Madeira was to provide system technologies for the Network Management environment that are required by Operators to effectively provide high quality network services in the foreseen scenario of vastly increased numbers and technological diversity of network elements and terminals (see the Madeira homepage for details). In a nutshell we developed a P2P-based network management prototype for large-scale telco providers, with special consideration of Configuration Management, Fault Management, scalability and security. Recently, there has been a report on the project in the Austrian FFG Magazin (last page here).

» Publications:

Book Chapters (in counter-chronological order): W.Hummer, P.Leitner, A.Michlmayr, F.Rosenberg, S.Dustdar: VRESCo - Vienna Runtime Environment for Service-oriented Computing, Service Engineering. European Research Results, Springer, 2010 A.Michlmayr, P.Leitner, F.Rosenberg and S.Dustdar: Event Processing in Web Service Runtime Environments, Handbook of Research on Advanced Distributed Event-Based Systems, Publish/Subscribe and Message Filtering Technologies, IGI Global (Editor(s): Annika Hinze and Alejandro Buchmann) P.Leitner, F.Rosenberg, A.Michlmayr, A.Huber and S.Dustdar: A Mediator-Based Approach to Resolving Interface Heterogeneity of Web Services, Post-Proceedings of the 3rd International Workshop on Emerging Web Service Technologies (WEWST'08), co-located with ECOWS'08, Dublin, Ireland, Birkhaeuser (Editor(s): Walter Binder and Schahram Dustdar), 2009 C.Fahy, M.Ponce de Leon, S.van der Meer, R.Marin, J.Vivero, J.Serrat, N.Georgalas, P.Leitner, S.Collins and B.Baesjou: Modelling Behaviour and Distribution for the Management of Next Generation Networks, appeared in Whitestein Series in Software Agent Technologies and Autonomic Computing, Special issue on Advanced Autonomic Networking and Communication, Birkhäuser, 2008 (link)

Journal Papers (in counter-chronological order): P. Leitner, W. Hummer and S. Dustdar: Data-Driven and Automated Prediction of Service Level Agreement Violations in Service Compositions, to appear in Distributed and Parallel Databases (Springer). 2013 W. Hummer, O. Raz, O. Shehory, P. Leitner, and S. Dustdar: Testing of Data-Centric and Event-Based Dynamic Service Compositions, to appear in Software Testing and Reliability (Wiley). 2013 B. Satzger, W. Hummer, C. Inzinger, P. Leitner, and S. Dustdar: Winds of Change: From Vendor Lock-In to the Meta Cloud, EEE Internet Computing. 2013, doi:10.1109/MIC.2013.19 S. Tai, P. Leitner and S. Dustdar: Design by Units - Abstractions for Human and Compute Resources for Elastic Systems, IEEE Internet Computing. 2012, doi:10.1109/MIC.2012.81 P. Leitner, W. Hummer and S. Dustdar: Cost-Based Optimization of Service Compositions, IEEE Transactions on Services Computing (TSC). 2011, doi:10.1109/TSC.2011.53 W. Hummer, P. Leitner and S. Dustdar: SEPL - A Domain-Specific Language and Execution Environment for Protocols of Stateful Web Services, Distributed and Parallel Databases (DPD), Volume 29, Issue 4, pp. 277-307, 2011 B.Wetzstein, P.Leitner, F. Rosenberg, S. Dustdar and F.Leymann: Identifying Influential Factors of Business Process Performance Using Dependency Analysis, Enterprise Information Systems (EIS), Volume 5, Issue 1, 2011 A.Michlmayr, F.Rosenberg, P.Leitner and S.Dustdar: End-to-End Support for QoS-Aware Service Selection, Binding and Mediation in VRESCo, IEEE Transactions on Services Computing (TSC), Volume 3, Number 3, 2010 A.Michlmayr, F.Rosenberg, P.Leitner and S.Dustdar: Selective Service Provenance in the VRESCo Runtime, International Journal on Web Services Research (JWSR), vol 7, no. 2, pp. 65-86, 2010, doi: 10.4018/jwsr.2010040104 P.Leitner, F.Rosenberg, S.Dustdar: Daios: Efficient Dynamic Web Service Invocation, IEEE Internet Computing, vol. 13, no. 3, pp. 72-80, May/June 2009, doi:10.1109/MIC.2009.57

Conference and Workshop Papers (in counter-chronological order): P. Leitner, S. Schulte, S. Dustdar, I. Pill, M. Schulz and F. Wotawa: The Dark Side of SOA Testing - Towards Testing Contemporary SOAs Based on Criticality Metrics, to appear at the 5th International Workshop on Principles of Engineering Service-Oriented Systems (PESOS), co-located with ICSE 2013, 2013 R. Zabolotnyi, P. Leitner and S. Dustdar: Dynamic Program Code Distribution in Infrastructure-as-a-Service Clouds, to appear at the 5th International Workshop on Principles of Engineering Service-Oriented Systems (PESOS), co-located with ICSE 2013, 2013 F. Wotawa, M. Schulz, I. Pill, S. Jehan, P. Leitner, W. Hummer, S. Schulte, P. Hoenisch and S. Dustdar: Fifty Shades of Grey in SOA Testing (Position Paper), to appear at the 9th Workshop on Advances in Model Based Testing (A-MOST), co-located with ICST 2013, 2013 C.Inzinger, B.Satzger, P.Leitner, W.Hummer, and S.Dustdar: Position Paper: Model-based Adaptation of Cloud Computing Applications, to appear at the International Conference on Model-Driven Engineering and Software Development (MODELSWARD), Special Track on Model-driven Software Adaptation (MODA), 2013 C.Inzinger, W.Hummer, B.Satzger, P.Leitner, and S.Dustdar: Identifying Incompatible Service Implementations using Pooled Decision Trees, to appear at the 28th Symposium on Applied Computing (SAC), Track on Dependable and Adaptive Distributed Systems, 2013 P.Leitner, C.Inzinger, W.Hummer, B.Satzger, and S.Dustdar: Application-Level Performance Monitoring of Cloud Services Based on the Complex Event Processing Paradigm, presented at the 2012 IEEE International Conference on Service-Oriented Computing and Applications (SOCA'12), 2012 C.Inzinger, W.Hummer, B.Satzger, P.Leitner, and S.Dustdar: Towards Identifying Root Causes of Faults in Service-Based Applications, presented at 31st IEEE International Symposium on Reliable Distributed Systems (SRDS 2012), Poster Track, 2012 W.Hummer, B.Satzger, P.Leitner, C.Inzinger and S.Dustdar: Deriving a Unified Fault Taxonomy for Distributed Event-Based Systems, presented at 6th ACM International Conference on Distributed Event-Based Systems (DEBS), 2012 P.Leitner, W.Hummer, B.Satzger, C.Inzinger and S.Dustdar: Cost-Efficient and Application SLA-Aware Client Side Request Scheduling in an Infrastructure-as-a-Service Cloud, presented at IEEE International Conference on Cloud Computing (CLOUD'12), 2012 P.Leitner, W.Hummer and S.Dustdar: A Monitoring Data Set for Evaluating QoS-Aware Service-Based Systems, presented at the 4th International Workshop on Principles of Engineering Service-Oriented Systems (PESOS), co-located with ICSE'12, 2012 P.Leitner, S.Dustdar, B.Wetzstein and F.Leymann: Cost-Based Prevention of Violations of Service Level Agreements in Composed Services Using Self-Adaptation, presented at the S-Cube@ICSE Workshop, co-located with ICSE'12, 2012 P.Leitner, B.Satzger, C.Inzinger, W.Hummer and S.Dustdar: CloudScale - a Novel Middleware for Building Transparently Scaling Cloud Applications, presented at the 27th Symposium On Applied Computing (SAC), Track on Cloud Computing, 2012 C.Inzinger, B.Satzger, W.Hummer, P.Leitner and S.Dustdar: Non-Intrusive Policy Optimization for Dependable and Adaptive Service-Oriented Systems, presented at the 27th Symposium On Applied Computing (SAC), Track on Dependable and Adaptive Distributed Systems, 2012 P.Leitner, F.M.Nardini, G.Tolomei, F.Silvestri and S.Dustdar: Mining Lifecycle Event Logs for Enhancing Service-based Applications, presented at 1st International Workshop on Adaptive Services for the Future Internet (WAS4FI) colocated with ServiceWave'11, 2011 P.Leitner, W. Hummer, B.Satzger and S. Dustdar: Stepwise and Asynchronous Runtime Optimization of Web Service Compositions, presented at 12th International Conference on Web Information Systems Engineering (WISE) (short paper), 2011 W. Hummer, B.Satzger, P.Leitner and S. Dustdar: Distributed Continuous Queries Over Web Service Event Streams, presented at 7th International Conference on Next Generation Web Services Practices (NWeSP'11), 2011 W. Hummer, P.Leitner, B.Satzger and S. Dustdar: Dynamic Migration of Processing Elements for Optimized Query Execution in Event-based Systems, presented at International Symposium on Distributed Objects, Middleware, and Applications (DOA 2011), 2011 B.Satzger, W. Hummer, P.Leitner and S. Dustdar: Esc: Towards an Elastic Stream Computing Platform for the Cloud, presented at 4th IEEE International Conference on Cloud Computing (CLOUD'11), 2011 W. Hummer, O. Raz, O. Shehory, P. Leitner and S. Dustdar: Test Coverage of Data-Centric Dynamic Compositions in Service-Based Systems, presented at 4th International Conference on Software Testing, Verification and Validation (ICST), 2011 W.Hummer, P.Leitner, and S.Dustdar: WS-Aggregation: Distributed Aggregation of Web Services Data, presented at 26th Symposium On Applied Computing (SAC), SOAP Track , 2011 W.Hummer, P.Leitner, and S.Dustdar: A Step-By-Step Debugging Technique To Facilitate Mashup Development and Maintenance, presented at 4th International Workshop on Web APIs and Services Mashups (Mashups'10) co-located with ECOWS 2010, December 1, 2010 P.Leitner, B.Wetzstein, D.Karastoyanova, W.Hummer, S.Dustdar and F.Leymann: Preventing SLA Violations in Service Compositions Using Aspect-Based Fragment Substitution, presented at International Conference on Service-Oriented Computing (ICSOC) , 2010 P.Leitner, A.Michlmayr, F.Rosenberg and S.Dustdar: Monitoring, Prediction and Prevention of SLA Violations in Composite Services, presented at IEEE International Conference on Web Services (ICWS) Industry and Applications Track, 2010 F.Rosenberg, M.B.Müller, P.Leitner, A.Michlmayr, A.Bouguettaya and S.Dustdar: Metaheuristic Optimization of Large-Scale QoS-Aware Service Compositions, presented at IEEE International Services Computing Conference (SCC), 2010 P.Leitner: Ensuring Cost-Optimal SLA Conformance for Composite Service Providers, presented at ICSOC/ServiceWave 2009 PhD Symposium, co-located with ICSOC 2009, 2009 link P.Leitner, B.Wetzstein, F.Rosenberg, A.Michlmayr, S.Dustdar and F.Leymann: Runtime Prediction of Service Level Agreement Violations for Composite Services, presented at 3rd Workshop on Non-Functional Properties and SLA Management in Service-Oriented Computing, co-located with ICSOC 2009, 2009 A.Michlmayr, F.Rosenberg, P.Leitner and S.Dustdar: Comprehensive QoS Monitoring of Web Services and Event-Based SLA Violation Detection, presented at 4th International Workshop on Middleware for Service Oriented Computing (MW4SOC), co-located with MIDDLEWARE'09, 2009 P.Leitner, A.Michlmayr, F.Rosenberg and S.Dustdar: Selecting Web Services Based on Past User Experiences, presented at 2009 Asia-Pacific Services Computing Conference (APSCC 2009), 2009 I.Brandic, D.Music, P.Leitner, S.Dustdar: VieSLAF Framework: Enabling Adaptive and Versatile SLA-Management, presented at 6th International Workshop on Grid Economics and Business Models (Gencon), co-located with Euro-Par'09, 2009 B.Wetzstein, P.Leitner, F.Rosenberg, I.Brandic, F.Leymann, S.Dustdar: Monitoring and Analyzing Influential Factors of Business Process Performance, presented at IEEE International Enterprise Computing Conference (EDOC), 2009 link F.Rosenberg, P.Celikovic, A.Michlmayr, P.Leitner, S.Dustdar: An End-to-End Approach for QoS-Aware Service Composition, presented at IEEE International Enterprise Computing Conference (EDOC) , 2009 link A.Michlmayr, F.Rosenberg, P.Leitner, S.Dustdar: QoS-Aware Service Provenance in Web Service Runtimes, presented at IEEE International Conference on Web Services (ICWS), 2009 link F.Rosenberg, P.Leitner, A.Michlmayr, P.Celikovic, S.Dustdar: Towards Composition as a Service - A Quality of Service Driven Approach, presented at 1st Workshop on Information and Software as Service (WISS), co-located with ICDE'09, 2009 link P.Leitner, A.Michlmayr, S.Dustdar: Towards Flexible Interface Mediation for Dynamic Service Invocations, presented at 3rd Workshop on Emerging Web Services Technology (WEWST), co-located with ECOWS'08, 2008 F.Rosenberg, P.Leitner, A.Michlmayr, S.Dustdar: Integrated Metadata Support for Web Service Runtimes, presented at Middleware for Web Services Workshop (MWS), co-located with EDOC'08, 2008 (link) A.Michlmayr, F.Rosenberg, P.Leitner, S.Dustdar: Advanced Event Processing and Notifications in Service Runtime Environments, presented at IEEE Int'l Conference on Distributed Event-Based Systems (DEBS), 2008 (link) A.Michlmayr, P.Leitner, F.Rosenberg, S.Dustdar: Publish/Subscribe in the VRESCo SOA Runtime, presented at IEEE Int'l Conference on Distributed Event-Based Systems (DEBS) (invited Demo Paper), 2008 (link) P.Leitner, A.Michlmayr, F.Rosenberg, S.Dustdar: End-to-End Versioning Support for Web Services, presented at IEEE Services Computing Conference (SCC), 2008 (link) R.Marin, J.Vivero, P.Leitner, A.Neppach, M.Zach: Securing the Madeira Network Management System, presented at IEEE Int'l Conference on Software, Telecommunications and Computer Networks (SoftCom), 2007 (link) M.Leitner, P.Leitner, M.Zach, S.Collins, C.Fahy: Fault Management based on peer-to-peer paradigms; A case study report from the CELTIC project Madeira, presented at IFIP/IEEE Int'l Symposium on Integrated Management (IM), 2007 (link) R.Marin, J.Vivero, H.Nguyen, J.Serrat, P.Leitner, M.Zach, C.Fahy: A Distributed Policy Based Solution in a Fault Management Scenario, presented at IEEE Global Communications Conference (GLOBECOM), 2006 (link)

Technical Reports (in counter-chronological order): W. Hummer, B. Satzger, P. Leitner, S. Dustdar: Distributed Continuous Data Aggregation Over Web Service Event Streams, Technical Report (TUV-1841-2011-04), Vienna University of Technology. (link) P. Leitner, W. Hummer, S. Dustdar: Cost-Based Optimization of Service Compositions, Technical Report (TUV-1841-2011-01), Vienna University of Technology. (link) P. Leitner, B. Wetzstein, F. Rosenberg, A. Michlmayr, S. Dustdar, F. Leymann: Runtime Prediction of Service Level Agreement Violations for Composite Services (Extension of the NFPSLAM-SOC Paper), Technical Report (TUV-1841-2010-02), Vienna University of Technology. (link) A. Michlmayr, F. Rosenberg, P. Leitner, S. Dustdar: End-to-End Support for QoS-Aware Service Selection, Invocation and Mediation in VRESCo, Technical Report (TUV-1841-2009-03), Vienna University of Technology. (link) P.Leitner, A.Michlmayr, F.Rosenberg, S.Dustdar: End-to-End Versioning Support for Web Services, Technical Report (TUV-1841-2008-01), Vienna University of Technology. (link) P.Leitner, F.Rosenberg, S.Dustdar: DAIOS - Efficient Dynamic Web Service Invocation, Technical Report (TUV-1841-2007-01), Vienna University of Technology. (link)

Theses (in counter-chronological order): P.Leitner: On Preventing Violations of Service Level Agreements in Composed Services using Self-Adaptation, PhD Thesis advised by S.Dustdar, second examiner F.Casati, Vienna University of Technology, 2011 (link) P.Leitner: The Daios Framework - Dynamic, Asynchronous and Message-oriented Invocation of Web Services, Master's Thesis advised by F.Rosenberg and S.Dustdar, Vienna University of Technology, 2007 (link)

» Professional Activities :

Editorial Memberships (in counter-chronological order): Special Issue on Software Tools and Technologies for Monitoring and Prediction of Cloud Services, Software: Practice and Experience (published by Wiley-Blackwell). Guest Editors: Rajiv Ranjan, Rajkumar Buyya, Philipp Leitner, Armin Haller, and Stefan Tai

Workshop (Co-)Chair (in counter-chronological order): 1st International Workshop on Monitoring and Prediction of Cloud Services (MoPoC'12), co-located with ICSOC'12

PC Memberships (in counter-chronological order): The 6th International Workshop on Evolutionary Business Processes (EVL-BP) , co-located with EDOC'13 5th Workshop on Services and their Composition (ZEUS) 5th International Workshop on Principles of Engineering Service-Oriented Systems (PESOS), co-located with ICSE 2013. Track on Provisioning and Management of Service Oriented Architecture and Cloud Computing (PROMASC'2013), a Track of the WETICE'2013 Conference Workshop on Performance Assessment and Auditing in Service Computing (PAASC), co-located with ICSOC'12 International Workshop on Evolutionary Business Processes (EVL-BP) , co-located with EDOC'12 4th Workshop on Services and their Composition (ZEUS) 2nd Workshop on Provisioning and Management of Service Oriented Architecture and Cloud Computing (ProMASC), co-located with ICSOC 2011 Performance Assessment and Auditing in Service Computing Workshop 2011, co-located with ICSOC 2011 6th Workshop on Emerging Web Services Technology (WEWST), co-located with ECOWS'11 International Workshop on Evolutionary Business Processes (EVL-BP), co-located with EDOC'11 Performance Assessment and Auditing in Service Computing Workshop 2010, co-located with ICSOC 2010 5th Workshop on Emerging Web Services Technology, co-located with ECOWS 2010 The 3rd International Workshop on Dynamic and Declarative Business Processes (DDBP'10), co-located with EDOC'10 4th Workshop on Emerging Web Services Technology, co-located with ECOWS 2009

Reviews for Journals (in counter-chronological order): Elsevier Information Processing Letters IEEE Internet Computing IEEE Software Elsevier Journal of Parallel and Distributed Computing (JPDC) ACM Transactions on the Web (TWEB) Elsevier Journal of Systems and Software (JSS) Springer Computing (Archives for Scientific Computing) Journal of Computer Science and Technology (JCST) International Journal of Cooperative Information Systems (IJCIS) IEEE Transactions on Services Computing (TSC) Transactions on Pattern Languages of Programming (TPLoP)

» Students :

If you are interested in doing a 'Praktikum', your bachelor's thesis, or your master's thesis with me just drop me a line. Important current open topics are always advertised at the top of this page (News). However, usually I have also some other open topics if you do not like the ones advertised there.

Current Master Students: Jürgen Cito Performance Insights: Statistics and Metrics in Web Performance Johannes Brunner TBD Fritz Schrogl Transparently Migrating Java Objects at Runtime in an Infrastructure-as-a-Service Cloud Rene Nowak Towards Providing Unified Access To Cloud Data Storage Services Patrick Favre-Bulle Optimization of the Distribution of Services Among Different Zones in a Heterogeneous Cloud-based Network to Minimize SLA Violations and Cost Finished Master Students: Matthias Irlacher Using Domain-specific Languages for Event-based QoS monitoring in Service-oriented Environments (with Ernst Oberortner) Johannes Ferner Using Time Series Analysis to Predict Service Level Agreement Violations in Service Compositions Petra Bierleutgeb VRoxy: Enriching SOAs with proxy-based dynamic binding and reporting based on VRESCo Matthias Hess Ensuring SLA Conformance using Cloud-Based Adaptation of Composite Service Hosting Environments Anton Korosec Deploying a Web Service Runtime into the Cloud Stefan Prennschütz-Schützenau SOA Security Policy Validation and Authoring (with IBM T.J. Watson Research Center, New York) Klaus Zettler Planung, Konzeption und Implementierung eines Virtual Campus im Rahmen von S-Cube Waldemar Hummer Towards a Domain-Specific Language for Defining Intra-Service Protocols of Stateful Web Services (link)

» Awards :

Frequentis Firmenpreis (2007): For my Master's Thesis work I was awarded a sponsorship from the company Frequentis at the epilog event 2007. I was also nominated for the 'Distinguished Alumni Award' at this event.

» Random Facts:

A few personal things about me: My Hobbies include snowboarding, playing Warhammer (don't we all love fantasy? no?), everything that is slightly related to the Simpsons, tabletennis (I play casually in the Robert Hanak Tischtennis Meisterschaft for the TTC St. Anton die ERSTE-n and in the VÖB for SKH), as well as a bunch of other stuff. If you are interested why my publication output is not as high as it might be have a look at QC, PhD Comics, Dilbert, OOTS or XBDC. You just gotta love Web Comics. . I recent times, I have also developed a significant interest in animal training, as illustrated by my blog on cat training (in german). This is my Last.FM album quilt - just to give you an idea of what Music I listen to (not that you would care, but I post it anyway since it looks cool):