Building upon a long tradition of scientifi c conferences dealing with problems of reliability
in technical systems in 2006 Department of Computer Engineering at Wroclaw University of
Technology established DepCoS-RELCOMEX series of events in order to promote a comprehensive
approach to evaluation of system performability which is now commonly called dependability.
Contemporary complex systems integrate variety of technical information soft ware and human
(users administrators and management) resources. Their complexity comes not only from involved
technical and organizational structures but mainly from complexity of information processes
that must be implemented in specific operational environment (data processing monitoring
management etc.). In such a case traditional methods of reliability evaluation focused mainly
on technical levels are insufficient and more innovative multidisciplinary methods of
dependability analysis must be applied. Selection of submissions for these proceedings
exemplify diversity of topics that must be included in such analyses: tools methodologies and
standards for modelling design and simulation of the systems security and confidentiality in
information processing specific issues of heterogeneous today often wireless computer
networks or management of transportation networks. In addition this edition of the conference
hosted the 5th CrISS-DESSERT Workshop devoted to the problems of security and safety in
critical information systems.
