The organisers of the conference are Ministry of Education and Science of Ukraine, Lviv Polytechnic National University, Institute of Computer Sciences and Information Technologies. The aim of the conference is to highlight and discuss the most important achievements in computer sciences and information technologies and to define prospects in their development. Authors of unique (original) papers from Ukraine and abroad are invited to take part in the conference. Plenary Sessions will be dedicated to the reports of the invited eminent scholars.The working languages of the Conference are Ukrainian and English. German is possible for Applied and Computer Linguistics section only.(source: csit2009.org)