ISAS, the International Service Availability Symposium, was a sequence of 5 events bringing together researchers and practitioners to discuss the availability aspects in services. The term services is kept relatively vague on purpose. This helped the ISAS conference to address a wide set of service areas including maintenance, Web services, xaaS (software, applications, infrastructure As A Service) and other service aspects around information (and communication) technologies.
| Conference | Place, Host,Organiser | Proceedings | 
| ISAS 2004 | Munich, Germany (hosted by Fujitsu Siemens Computers, Manfred Reitenspiess organisation chair) | |
| ISAS 2005 | Berlin, Germany (hosted by Humboldt University, Miroslaw Malek organisation chair) | |
| ISAS 2006 | Helsinki, Finland (hosted by Nokia, Francis Tam organisation chair ) | |
| ISAS 2007 | Durham, NH (hosted by the University of New Hampshire, Scott Valcourt organisation chair) | |
| Tokyo, Japan (hosted by the University of Tokyo, Takashi Nanya organisation chair) You can find unpublished material on the following SAFORUM web site: | 
Manfred acted in different roles (founder, program co-chair, organizer, etc) in the course of the 5 conferences.