Research Staff Member

Dr. Alexander Keller

Picture of Alexander Keller
IBM Research Division Thomas J. Watson Research Center Email: Mail: P.O. Box 704 Yorktown Heights, NY 10598 USA Office: 19 Skyline Drive Room 2S-B56 Hawthorne, NY 10532 USA Phone: +1 (914) 784-7593 Fax: +1 (914) 784-6183

Welcome!

I am a Research Staff Member and manage the Service Delivery Technologies Group at the IBM T.J. Watson Research Center in Hawthorne, NY, USA.
In early 1999, I joined the IBM Research Division. I have worked on a variety of research projects, some of which are part of IBM's Autonomic Computing Initiative, in the field of Service Delivery, and Distributed Application and Service Management. The following webpages (sorted in reverse chronological order) describe the most visible projects I have been involved with:

IT Complexity Benchmarking Project (soon to come, stay tuned)
CHAnge Management with Planning and Scheduling (CHAMPS)
Web Service Level Agreements (WSLA)
Dependency Management for distributed Applications

From December 1994 to December 1998, I worked in the Munich Network Management (MNM) Team, a group of researchers from the University of Munich, the Munich University of Technology and the Leibniz Supercomputing Center (LRZ).
On this page, you will find Information about my:

If you have questions or would like to receive further information, please do not hesitate to contact me, preferably by EMail (remove "DELETETHIS" before sending).

Education:

TU München - Munich University of Technology
Dr. rer. nat. (Ph.D.) in Computer Science, December 1998

TU München - Munich University of Technology
Diploma (M.Sc.) in Computer Science / Economics, October 1994

Research Interests:

IT Complexity Benchmarks:
Providing tools for analyzing why today's IT systems are so hard to set up, administer, maintain and upgrade. Identify and fix complexity bottlenecks and hotspots.
Change Management based on Planning and Scheduling:
A novel approach to tackle Data Center Automation and Service Provisioning according to the IT Infrastructure Library (ITIL). The CHAnge Management with Planning and Scheduling (CHAMPS) project I am leading formulates Change Manageement as an optimization problem in order to assign incoming Requests for Changes to data center resources by computing a Change Plan (aka Forward Schedule of Change in ITIL parlance).
Service Level Agreements, in particular for Web Services:
I am a main contributor to the IBM Web Service Level Agreement Framework, whose implementation (termed WSLA Compliance Monitor) was part of the IBM Web Services Toolkit since version 3.2 of August 2002. The stable draft 1.0 of the WSLA Language Specification has been cleared for distribution outside IBM. WSLA serves as a basis of the upcoming WS-Agreement standard in the Global Grid Forum.
Application Dependency Analysis:
You will find several papers documenting our results in my publication section.
CIM based Service and Application Management:
I am one of the inventors of the CIM Metrics Model, which has been adopted by the DMTF for the final version of CIM version 2.7. The implementation effort I lead here at Watson served as the major proof-of-concept for the Metrics Model.

Professional Activities:

Conference/Journal Organization:

Technical Program Co-Chair and Member of the Organizing Committee, 10th International IFIP/IEEE Symposium on Integrated Management (IM 2007), Munich, Germany, May, 2007
Guest Editor, IEEE Transactions on Network and Service Management, Special Issue on Self-Management, June, 2007
Co-Chair, Second IEEE International Workshop on Self-Managed Networks, Systems & Services (SelfMan 2006), Dublin, Ireland, June, 2006
Member of the Board of Editors, Journal of Network and Systems Management, Springer Verlag / Plenum Publishing Corporation
Tutorial Program Chair and Member of the Organizing Committee, 2006 IFIP/IEEE Network Operations and Management Symposium (NOMS 2006), Vancouver, BC, Canada, April, 2006
Guest Editor, Journal of Network and Systems Management, Special Issue on Self-Managing Systems and Networks, Springer Verlag / Plenum Publishing Corporation, June, 2005
Finance Co-Chair and Member of the Organizing Committee, 9th International IFIP/IEEE Symposium on Integrated Management (IM 2005), Nice, France, April, 2005
Co-Chair, 14th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2003), Heidelberg, Germany, October, 2003

Member of Technical Program Committee for:

The 4th IEEE International Conference on Autonomic Computing (ICAC 2007), Jacksonville, FL, USA, June, 2007
First IEEE International Conference on Self-Adaptive and Self-Organizing Systems (SASO 2007), Boston, MA, USA, July, 2007
IEEE International Conference on Communications - Network Services and Operation (ICC-NSO 2007), Glasgow, Scotland, June, 2007
Autonomous Infrastructure, Management and Security (AIMS 2007), Oslo, Norway, June, 2007
Second Business-Driven IT Management workshop (BDIM 2007), held in conjunction with IM 2007, Munich, Germany, May, 2007
4th IEEE Workshop on Engineering of Autonomic and Autonomous Systems (EASe 2007), Tucson, AZ, USA, March, 2007
The 4th European Conference on Web Services (ECOWS 2006), Zurich, Switzerland, December, 2006
17th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2006), Dublin, Ireland, October, 2006
6th IFIP WG 6.1 International Conference on Distributed Applications and Interoperable Systems (DAIS 2006), Bologna, Italy, June, 2006
2nd International Workshop on Autonomic Communications and Computing (ACC 2006), Buffalo, NY, USA, June, 2006
2006 IFIP/IEEE Network Operations and Management Symposium (NOMS 2006), Vancouver, BC, Canada, April, 2006
First Business-Driven IT Management workshop (BDIM 2006), held in conjunction with NOMS 2006, Vancouver, BC, Canada, April, 2006
The 3rd European Conference on Web Services (ECOWS 2005), Växjö, Sweden, November, 2005
16th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2005), Barcelona, Spain, October, 2005
2005 Middleware for Web Services Workshop (MWS 2005), Enschede, The Netherlands, September, 2005
9th International IFIP/IEEE Symposium on Integrated Network Management (IM 2005), Nice, France, May, 2005
First IFIP/IEEE International Workshop on Self-Managed Systems & Services (SelfMan 2005), Nice, France, May, 2005
15th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2004), Davis, CA, USA, November, 2004
IEEE/IFIP Network Operations and Management Symposium (NOMS 2004), Seoul, Korea, April, 2004
8th International IFIP/IEEE Symposium on Integrated Network Management (IM 2003), Colorado Springs, CO, USA, March, 2003
16th USENIX Systems Administration Conference (LISA'02), Philadelphia, PA, USA, November, 2002
13th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2002), Montreal, Canada, October, 2002
IEEE/IFIP Network Operations and Management Symposium (NOMS 2002), Florence, Italy, April, 2002
12th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2001), Nancy, France, October, 2001
7th International IFIP/IEEE Symposium on Integrated Network Management (IM 2001), Seattle, WA, USA, May, 2001
11th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2000), Austin, TX, USA, December, 2000

Reviewer for:

International IFIP/IEEE Symposium on Integrated Network Management (IM)
IEEE/IFIP Network Operations and Management Symposium (NOMS)
IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM)
USENIX Systems Administration Conference (LISA)
IEEE Communications Conference (ICC)
International Conference on Service Oriented Computing (ICSOC)
ACM/IFIP/USENIX International Middleware Conference (Middleware)
Latin American Network Operations and Management Symposium (LANOMS)
IFIP WG 6.1 International Working Conference on Distributed Applications and Interoperable Systems (DAIS)
GI/ITG-Fachtagung Kommunikation in verteilten Systemen (KiVS)

Journal of Network and Systems Management, Springer Verlag / Plenum Publishing Corporation
Distributed Computing, Springer Verlag
World Wide Web Journal, Springer Verlag
IEEE Network
IEEE Communications Surveys & Tutorials
IEEE eTransactions on Network and Service Management (eTNSM)
IEEE Journal on Selected Areas in Communications
IBM Systems Journal
IBM Journal of Research and Development
Computer Networks Journal, Elsevier
Journal of Communications and Networks
IEE/IOP Distributed Systems Engineering Journal

Member of the Scientific Council of EMANICS (European Network of Excellence for the Management of Internet Technologies and Complex Services)
External Referee, Natural Sciences and Engineering Research Council of Canada (NSERC)
External Referee, GLANCE (GLobAl computer scieNCE) program of the Netherlands Organisation for Scientific Research (NWO)
External Referee, Hasler Foundation, Switzerland

Memberships:

Publications:

NOTE: Before downloading documents, please make sure you comply with the Copyright Notices listed at the bottom of this page. Thank you!

Y. Diao, A. Keller, S. Parekh, and V. Marinov, Predicting Labor Cost through IT Management Complexity Metrics, To appear in the Proceedings of the 10th IFIP/IEEE International Symposium on Integrated Network Management (IM 2007), Munich, Germany, May, 2007
Preprint available as IBM Research Report RC 24048

Y. Diao, A. Keller, Quantifying the Complexity of IT Service Management Processes, In Proceedings of the 17th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM 2006), Dublin, Ireland, Lecture Notes in Computer Science 4269, Springer Verlag, October, 2006
Preprint available as IBM Research Report RC 23972

A. Keller, J.-P. Martin-Flatin, Self-Managing Systems and Networks, Editorial of the Proceedings of the 2nd IEEE International Workshop on Self-Managed Systems: Operations and Management (SelfMan 2006), Dublin, Ireland, Springer Lecture Notes in Computer Science 3996, June, 2006

A. Brown, A. Keller, A Best Practice Approach for Automating IT Management Processes, In Proceedings of the IEEE/IFIP Network Operations and Management Symposium (NOMS 2006), April, 2006
Preprint available as IBM Research Report RC 23693

R. Khalaf, A. Keller, F. Leymann, Business Processes for Web Services: Principles and Applications, In: Special Issue "Celebrating 10 Years of XML", IBM Systems Journal, number 2, volume 45, 2006

Keller, A., Automating the Change Management Process with Electronic Contracts, Proceedings of the The First IEEE International Workshop on Service oriented Solutions for Cooperative Organizations (SoS4CO '05), IEEE Computer Society Press, July, 2005

Keller, A., Brunner, M., Editorial: Self-Managing Systems and Networks, Journal of Network and Systems Management, Special Issue on "Self-Managing Systems and Networks", Volume 13, Number 2, Springer Verlag / Plenum Publishing Corporation, June, 2005

Brown, A., Keller, A., Hellerstein, J., A Model of Configuration Complexity and its Application to a Change Management System, Proceedings of the 9th International IFIP/IEEE Symposium on Integrated Management (IM 2005), IEEE Press, May, 2005
Best Paper Award
Preprint available as IBM Research Report RC23621

Keller, A., Benke, O., Debusmann, M., Köppel, A., Kreger, H.M., Maier, A., Schopmeyer, K., The CIM Metrics Model: Introducing Flexible Data Collection and Aggregation for Performance Management in CIM, IEEE electronic Transactions on Network and Service Management, Volume 1, Number 2, IEEE, December, 2004

Diao, Y., Eskesen, F.N., Froehlich, S.E., Hellerstein, J.L., Keller, A., Spainhower, L., Surendra, M., Service Level Management: A dynamic Discovery and Optimization Approach, IEEE electronic Transactions on Network and Service Management, Volume 1, Number 2, IEEE, December, 2004

Keller, A., Badonnel, R., Automating the Provisioning of Application Services with the BPEL4WS Workflow Language, Proceedings of the 15th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2004), Lecture Notes in Computer Science 3278, Springer Verlag, November, 2004

Keller, A., Ludwig, H., Policy-basiertes Management: State-of-the-Art und zukünftige Fragestellungen, (in German), Praxis der Informationsverarbeitung und Kommunikation, Volume 27, Issue 2, K.G. Saur Verlag, June, 2004

Keller, A., Diao, Y., Eskesen, F.N., Froehlich, S.E., Hellerstein, J.L., Spainhower, L., Surendra, M., Generic On-Line Discovery of Quantitative Models, IEEE electronic Transactions on Network and Service Management, Volume 1, Number 1, IEEE, April, 2004

A. Keller, J. Hellerstein, J.L. Wolf, K. Wu, V. Krishnan, The CHAMPS System: Change Management with Planning and Scheduling, Proceedings of the IEEE/IFIP Network Operations and Management Symposium (NOMS 2004), IEEE Press, April 2004
Preprint available as IBM Research Report RC22882

A. Dan, D. Davis, R. Kearney, R. King, A. Keller, D. Kuebler, H. Ludwig, M. Polan, M. Spreitzer, and A. Youssef, Web Services on demand: WSLA-driven Automated Management, IBM Systems Journal, Special Issue on Utility Computing, Volume 43, Number 1, pages 136-158, IBM Corporation, March, 2004

Keller, A., Diao, Y., Eskesen, F.N., Froehlich, S.E., Hellerstein, J.L., Spainhower, L.F., Surendra, M., A Quantitative Approach for On-Line Metric Discovery, Proceedings of DSMS 2003: First IEEE Workshop on the Design of Self-Managing Systems, IEEE Computer Society, June 2003

Keller, A., Ludwig, H., The WSLA Framework: Specifying and Monitoring Service Level Agreements for Web Services, Journal of Network and Systems Management, Special Issue on "E-Business Management", Volume 11, Number 1, Plenum Publishing Corporation, March, 2003
Preprint available as IBM Research Report RC22456

Debusmann, M., Keller, A., SLA-driven Management of Distributed Systems using the Common Information Model, Proceedings of the 8th International IFIP/IEEE Symposium on Integrated Management (IM 2003), Kluwer Academic Publishers, March, 2003
Preprint available as IBM Research Report RC22545

Diao, Y., Eskesen, F.N., Froehlich, S.E., Hellerstein, J.L., Keller, A., Spainhower, L.F., Surendra, M., Generic On-line Discovery of Quantitative Models for Service Level Management, Proceedings of the 8th International IFIP/IEEE Symposium on Integrated Management (IM 2003), Kluwer Academic Publishers, March, 2003

Ludwig, H., Keller, A., Dan, A., King, R.P., Franck, R., A Service Level Agreement Language for Dynamic Electronic Services, Journal of Electronic Commerce Research, Volume 3, Issue 1&2, Kluwer Academic Publishers, March, 2003

Keller, A., Ludwig, H., Defining and Monitoring Service Level Agreements for dynamic e-Business, Proceedings of the 16th USENIX System Administration Conference (LISA'02), November, 2002

Keller, A., Köppel, A., Schopmeyer, K., Measuring Application Response Times with the CIM Metrics Model, 13th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM 2002), October, 2002
Preprint available as IBM Research Report RC22485

Ensel, C., Keller, A., An Approach for Managing Service Dependencies with XML and the Resource Description Framework, Journal of Network and Systems Management, Special Issue on "Selected Papers of IM 2001", Volume 10, Number 2, Plenum Publishing Corporation, June, 2002
Preprint available as IBM Research Report RC22307

Ludwig, H., Keller, A., Dan, A., King, R.P., A Service Level Agreement Language for Dynamic Electronic Services, Proceedings of the 4th IEEE International Workshop on Advanced Issues of E-Commerce and Web-based Information Systems (WECWIS'02), June, 2002
Preprint available as IBM Research Report RC22316

Keller, A., Kar, G., Ludwig, H., Dan, A., Hellerstein, J.L., Managing Dynamic Services: A Contract Based Approach to a Conceptual Architecture, Proceedings of the 8th IEEE/IFIP Network Operations and Management Symposium (NOMS 2002), April, 2002
Preprint available as IBM Research Report RC22162

Keller, A., Kreger, H., Schopmeyer, K., Towards a CIM Schema for RunTime Application Management, Proceedings of the 12th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM 2001), October, 2001
Preprint available as IBM Research Report RC22168

Keller, A., Kar, G., Determining Service Dependencies in Distributed Systems, Proceedings of the IEEE International Conference on Communications (ICC 2001), IEEE, June, 2001

Ensel, C., Keller, A., Managing Application Service Dependencies with XML and the Resource Description Framework, Proceedings of the 7th International IFIP/IEEE Symposium on Integrated Management (IM 2001), IEEE Press, May, 2001
Preprint available as IBM Research Report RC21950

Brown, A., Kar, G., Keller, A., An Active Approach to Characterizing Dynamic Dependencies for Problem Determination in a Distributed Application Environment, Proceedings of the 7th International IFIP/IEEE Symposium on Integrated Management (IM 2001), IEEE Press, May, 2001
Preprint available as IBM Research Report RC21839

Kar, G., Keller, A., An Architecture for Managing Application Services over Global Networks, Proceedings of the Twentieth Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE INFOCOM 2001), IEEE, April, 2001

Keller, A., CIM/CORBA-basiertes Management verteilter kooperierender Managementsysteme (in german), Proceedings of the GI/ITG-Fachtagung Kommunikation in verteilten Systemen (KiVS 2001), Springer Verlag, February, 2001

Blumenthal, U., Kar, G., Keller, A., Classification and Computation of Dependencies for Distributed Management, Proceedings of the IEEE Symposium on Computers and Communication (ISCC 2000), July, 2000

Keller, A., Kar, G., Dynamic Dependencies in Application Service Management Proceedings of the 2000 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2000), June, 2000
Preprint available as IBM Research Report RC21770

Kar, G., Keller, A., Calo, S., Managing Application Services over Service Provider Networks: Architecture and Dependency Analysis, Proceedings of the Seventh IEEE/IFIP Network Operations and Management Symposium (NOMS 2000), April, 2000

Keller, A., Reiser, H., Dynamic Management of Internet Telephony Servers: A Case Study based on JavaBeans and JDMK, Proceedings of the 3rd International Enterprise Distributed Object Computing Conference (EDOC '99), September, 1999

Keller, A., Managing the Management: CORBA-based Instrumentation of Management Systems, Proceedings of the 6th International IFIP/IEEE Symposium on Integrated Management (IM99), May, 1999

Keller, A., Towards CORBA-based Enterprise Management: Managing CORBA-based Systems with SNMP Platforms, Proceedings of the 2nd International Enterprise Distributed Object Computing Workshop (EDOC '98), November, 1998

Keller, A., Tool-based re-engineering of SNMP Agents for CORBA, Proceedings of the 4th EUNICE Open European Summer School on Network Management and Operation: EUNICE'98, September, 1998

Keller, A., Towards Interoperable Management Architectures: Making SNMP Management Platforms suitable for CORBA, Proceedings of the 5th Workshop of the OpenView University Association: OVUA'98, April, 1998

Keller, A., Tool-based Implementation of a Q-Adapter Function for the seamless Integration of SNMP-managed Devices in TMN, Proceedings of the IEEE/IFIP Network Operations and Management Symposium (NOMS 98), February, 1998

Keller, A. and Neumair, B., Using ODP as a Framework for CORBA-based Distributed Applications Management, Proceedings of the Joint International Conference on Open Distributed Processing (ICODP) and Distributed Platforms (ICDP), Chapman & Hall, May, 1997

Keller, A., Systems Management with Distributed Objects: Porting SNMP Agents to a CORBA Environment, Proceedings of the 4th Workshop of the OpenView University Association: OVUA'97, April, 1997

Keller, A. and Neumair, B., Distributed Applications Management based on ODP Viewpoint Concepts and CORBA, Proceedings of the 4th Workshop of the OpenView University Association: OVUA'97, April, 1997

Keller, A. and Neumair, B., Interoperable Architekturen als Basis eines integrierten Managements, GI/ITG-Fachtagung Kommunikation in verteilten Systemen (KiVS'97), Springer Verlag, Februar, 1997

Keller, A., Ein werkzeugunterstützter Ansatz zur Gewinnung CORBA-konformer Managementagenten aus modularen SNMP-Implementierungen, GI/ITG-Fachtagung Kommunikation in verteilten Systemen (KiVS'97), Springer Verlag, Februar, 1997

Keller, A., Service-based Systems Management: Using CORBA as a Middleware for Intelligent Agents, Proceedings of the IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 96), October, 1996

Heilbronner, S., Keller, A. and Neumair, B., Integriertes Netz- und Systemmanagement mit modularen Agenten, Proceedings of SIWORK'96: Workstations und ihre Anwendungen, vdf Hochschulverlag AG an der ETH Zürich, May, 1996

Keller, A. and Neumair, B., Systems Management Middleware: Verteilte objektorientierte Technologien für das Systemmanagement, Organisation und Betrieb von DV-Versorgungsstrukturen, Deutscher Universitäts-Verlag, November, 1995

My Ph.D. Thesis:

Keller, A., CORBA-basiertes Enterprise Management: Interoperabilität und Managementinstrumentierung verteilter kooperativer Managementsysteme in heterogener Umgebung, Ph.D. Thesis, Technische Universität München, October, 1998

My Diploma (M.Sc.) Thesis (once upon a time):

Keller, A., Entwurf und Implementierung von Managementszenarien zu bestehenden Kommunikationsanwendungen, Technische Universität München, May, 1993

Presentations (in Adobe Acrobat PDF Format):

Keller, A., "Standards-based Autonomic Change Management with WS-BPEL, WS-Agreement and Solution Install", Demo Track, Second IEEE International Conference on Autonomic Computing (ICAC 2005), Seattle, WA, USA, June, 2005

Panel: "Can Management Systems Leverage Self-Organization?", Panel Discussion, First IFIP/IEEE International Workshop on Self-Managed Systems & Services (SelfMan 2005), Nice, France, May, 2005

Brown, A., Keller, A., Hellerstein, J., A Model of Configuration Complexity and its Application to a Change Management System, 9th International IFIP/IEEE Symposium on Integrated Management (IM 2005), Nice, France, May, 2005. Best Paper Award

Keller, A., Anerousis, N., Tutorial on: Management of Enterprise Web Applications: Problems, Approaches, Solutions, 9th International IFIP/IEEE Symposium on Integrated Management (IM 2005), Nice, France, May, 2005

Keller, A., Keynote: "Towards Autonomic Networking Middleware", Second Workshop on Next Generation Networking Middleware (NGNM 2005), Waterloo, ON, Canada, May, 2005

Keller, A., Badonnel, R., Automating the Provisioning of Application Services with the BPEL4WS Workflow Language, 15th IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 2004), Davis, CA, USA, November, 2004

"The CHAMPS System: A Schedule-optimized Change Manager", USENIX'04 Annual Technical Conference, Advanced System Administration SIG Session, Boston, MA, USA, June, 2004

A. Keller, J. Hellerstein, J.L. Wolf, K. Wu, V. Krishnan, The CHAMPS System: Change Management with Planning and Scheduling, IEEE/IFIP Network Operations and Management Symposium (NOMS 2004), Seoul, Korea, April 2004

Keller, A., Diao, Y., Eskesen, F.N., Froehlich, S.E., Hellerstein, J.L., Spainhower, L.F., Surendra, M., A Quantitative Approach for On-Line Metric Discovery, DSMS 2003: First IEEE Workshop on the Design of Self-Managing Systems, San Francisco, CA, USA, June, 2003

Debusmann, M., Keller, A., SLA-driven Management of Distributed Systems using the Common Information Model, 8th International IFIP/IEEE Symposium on Integrated Management (IM 2003), Colorado Springs, CO, USA, March, 2003

Diao, Y., Eskesen, F.N., Froehlich, S.E., Hellerstein, J.L., Keller, A., Spainhower, L.F., Surendra, M., Generic On-line Discovery of Quantitative Models for Service Level Management, 8th International IFIP/IEEE Symposium on Integrated Management (IM 2003), Colorado Springs, CO, USA, March, 2003

Keller, A., Ludwig, H., Defining and Monitoring Service Level Agreements for dynamic e-Business, 16th USENIX System Administration Conference (LISA'02), Philadelphia, PA, USA, November, 2002

Keller, A., Köppel, A., Schopmeyer, K., Measuring Application Response Times with the CIM Metrics Model, 13th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM 2002), Montreal, Canada, October, 2002

Keller, A., Kar, G., Ludwig, H., Dan, A., Hellerstein, J.L., Managing Dynamic Services: A Contract Based Approach to a Conceptual Architecture, 8th IEEE/IFIP Network Operations and Management Symposium (NOMS 2002), Florence, Italy, April, 2002

Keller, A., Kreger, H., Schopmeyer, K., Towards a CIM Schema for RunTime Application Management, 12th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management (DSOM 2001), Nancy, France, October, 2001

Keller, A., Kar, G., Determining Service Dependencies in Distributed Systems, IEEE International Conference on Communications (ICC 2001), Helsinki, Finland, June, 2001

Ensel, C., Keller, A., Managing Application Service Dependencies with XML and the Resource Description Framework, 7th International IFIP/IEEE Symposium on Integrated Management (IM 2001), Seattle, WA, USA, May, 2001

Brown, A., Kar, G., Keller, A., An Active Approach to Characterizing Dynamic Dependencies for Problem Determination in a Distributed Application Environment, 7th International IFIP/IEEE Symposium on Integrated Management (IM 2001), Seattle, WA, USA, May, 2001

Kar, G., Keller, A., An Architecture for Managing Application Services over Global Networks, Twentieth Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE INFOCOM 2001), Anchorage, AK, USA, April, 2001

Keller, A., CIM/CORBA-basiertes Management verteilter kooperierender Managementsysteme (in german), GI/ITG-Fachtagung Kommunikation in verteilten Systemen (KiVS 2001), Hamburg, Germany, February, 2001

Blumenthal, U., Kar, G., Keller, A., Classification and Computation of Dependencies for Distributed Management, IEEE Symposium on Computers and Communication (ISCC 2000), Antibes/Juan-les-Pins, France, July, 2000

Keller, A., Kar, G., Dynamic Dependencies in Application Service Management 2000 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2000), Las Vegas, NV, USA, June, 2000

Kar, G., Keller, A., Calo, S., Managing Application Services over Service Provider Networks: Architecture and Dependency Analysis, Seventh IEEE/IFIP Network Operations and Management Symposium (NOMS 2000), Honolulu, HI, USA, April, 2000

Keller, A., Reiser, H., Dynamic Management of Internet Telephony Servers: A Case Study based on JavaBeans and JDMK, 3rd International Enterprise Distributed Object Computing Conference (EDOC '99), Mannheim, Germany, September, 1999

Keller, A., Managing the Management: CORBA-based Instrumentation of Management Systems, 6th International IFIP/IEEE Symposium on Integrated Network Management (IM'99), Boston, MA, USA, May, 1999

Keller, A., CORBA-basiertes Enterprise Management: Interoperabilität und Managementinstrumentierung verteilter kooperativer Managementsysteme in heterogener Umgebung, Ph.D. Defense, Technische Universität München, December, 1998

Keller, A., Towards CORBA-based Enterprise Management: Interoperability and Instrumentation of Management Systems, IBM T.J. Watson Research Center, Yorktown Heights, NY, USA, November, 1998

Keller, A., Towards CORBA-based Enterprise Management: Managing CORBA-based Systems with SNMP Platforms, 2nd International Enterprise Distributed Object Computing Workshop (EDOC '98), La Jolla, CA, USA, November, 1998

Keller, A., Tool-based re-engineering of SNMP Agents for CORBA, 4th EUNICE Open European Summer School on Network Management and Operation: EUNICE'98, Munich, Germany, September, 1998

Keller, A., Towards Interoperable Management Architectures: Making SNMP Management Platforms suitable for CORBA, Proceedings of the 5th Workshop of the OpenView University Association: OVUA'98, Rennes, France, April, 1998

Keller, A., Tool-based Implementation of a Q-Adapter Function for the seamless Integration of SNMP-managed Devices in TMN, IEEE/IFIP Network Operations and Management Symposium (NOMS'98), New Orleans, LA, USA, February, 1998

Keller, A., Einsatz von Java und CORBA im Netz- und Systemmanagement, Workshop zur Kooperation BMW - MNM Team, Munich, Germany, July, 1997

Keller, A. and Neumair, B., Using ODP as a Framework for CORBA-based Distributed Applications Management, Joint International Conference on Open Distributed Processing (ICODP) and Distributed Platforms (ICDP), Toronto, Canada, May, 1997

Keller, A., Systems Management with Distributed Objects: Porting SNMP Agents to a CORBA Environment, Proceedings of the 4th Workshop of the OpenView University Association: OVUA'97, Madrid, Spain, April, 1997

Keller, A. and Neumair, B., Distributed Applications Management based on ODP Viewpoint Concepts and CORBA, 4th Workshop of the OpenView University Association: OVUA'97, Madrid, Spain, April, 1997

Keller, A. and Neumair, B., Interoperable Architekturen als Basis eines integrierten Managements, GI/ITG-Fachtagung Kommunikation in verteilten Systemen (KiVS'97), Braunschweig, Germany, February, 1997

Keller, A., Ein werkzeugunterstützter Ansatz zur Gewinnung CORBA-konformer Managementagenten aus modularen SNMP-Implementierungen, GI/ITG-Fachtagung Kommunikation in verteilten Systemen (KiVS'97), Braunschweig, Germany, February, 1997

Keller, A., Systemmanagement in heterogenen Systemen auf der Basis von CORBA, Workshop zur Kooperation IBM - MNM Team, IBM European Networking Center, Heidelberg, Germany, November, 1996

Keller, A., Service-based Systems Management: Using CORBA as a Middleware for Intelligent Agents, IFIP/IEEE International Workshop on Distributed Systems: Operations & Management (DSOM 96), L'Aquila, Italy, October, 1996

Keller, A., Objektorientierte Technologien im System- und Anwendungsmanagement, Workshop zur Kooperation BMW - MNM Team, Munich, Germany, June, 1996

Heilbronner, S., Keller, A. and Neumair, B., Integriertes Netz- und Systemmanagement mit modularen Agenten, SIWORK'96: Workstations und ihre Anwendungen, Zurich, Switzerland, May, 1996

Keller, A. and Neumair, B., Systems Management Middleware: Verteilte objektorientierte Technologien für das Systemmanagement, Organisation und Betrieb von DV-Versorgungsstrukturen, Göttingen, Germany, November, 1995

Keller, A. Integriertes Systemmanagement auf der Basis einheitlicher Middleware Treffen der GI-Fachgruppe Betriebssysteme: "Management komplexer Systeme", Paderborn, Germany, November, 1995

Keller, A., Objektorientierte Technologien und deren Anwendung im Systemmanagement, Workshop zur Kooperation IBM - MNM Team, IBM European Networking Center, Heidelberg, Germany, February, 1995

Copyright Notices:

ACM Papers - Copyright © by Association for Computing Machinery, Inc. Permission to make digital or hard copies of part of all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage. To copy otherwise, to republish, to post of servers, or to redistribute to lists, requires prior specific permission and/or a fee.
IEEE Papers - Copyright © by IEEE. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit. To copy otherwise, to republish, to post of servers, or to redistribute to lists, requires prior specific permission and/or a fee.