Computer-based systems have become omnipresent commodities within our - vironment. While for a
large variety of these systems such as transportation systems nuclear or chemical plants or
medical systems their relation to safety is obvious we often do not re?ect that others are as
directly related to risks concerning harm done to persons or matter as for example elevator
control or mobile phones. At least we are not aware of the risk in our daily use of them.
Safecomp as a community and a conference series has accompanied this - velopment for 30 years
up to Safecomp 2009 which was the 28th of the series. During this time the topics and methods
as well as the community have und- gone changes. These changes re?ect the requirements of the
above-mentioned ubiquitious presence of safety-related systems. Safecomp has always encouraged
and will further encourage academia and industry to share and exchange their ideas and
experiences. After 30 years we as the organizers of Safecomp 2009 found it imperative to take
stock: which methods found their way into the application areas which new approaches need to
be checked for their practical applicability. As di?erent application domains developed their
own approaches over the previous decades we tried to attract people with di?erent backgrounds
for this conference. - though the years 2008 and 2009 were not easy with regard to the overall
global economic situation we succeeded with this goal.
