The 11th International Baltic Conference on Databases and Information Systems (Baltic DB&IS'2014) took place on 8–11 June 2014 in Tallinn, Estonia. The Baltic DB&IS series of biennial conferences celebrated its 20th anniversary year in 2014 as the first conference was held in Trakai (Lithuania) in 1994. Former Baltic DB&IS conferences have been held in Tallinn (1996, 2002, 2008), Riga (1998, 2004, 2010), and Vilnius (2000, 2006, 2012).

The Baltic Db&IS'2014 conference was organised by the Institute of Cybernetics at Tallinn University of Technology and Department of Computer Engineering of Tallinn University of Technology, and supported by the European Social Fund through the Estonian National Doctoral School in Information and Communication Technology, European Union Regional Development Fund through Centre of Excellence in Computer Science (EXCS), and Department of State Information Systems of Estonia.

The aim of the Baltic DB&IS series of conferences is to bring together researchers, practitioners and PhD students in the fields of advanced database and IS research. In 2014, the focus of the conference was on new research areas like big data management, linking data and knowledge, and new data usage scenarios.

The International Programme Committee had representatives from 20 countries. Altogether, 61 submissions were received from 13 countries. Each conference paper was assigned for review to at least three referees from different countries. As a result, 36 regular papers were accepted for presentation at the conference. From the presented papers, 22 best papers were selected for revision and were included into this volume.

The original research results presented in papers mostly belong to novel fields of research such as big data processing, data warehouses, data integration and services, data and knowledge management, e-government, e-services and e-learning.

This volume includes also three invited talks. Prof. Sören Auren and Dr. Christoph Lange discussed research challenges of applying Linked Data paradigm in various domains. Prof. Bela Stantic addressed problems of efficient management of big data. Dr. Audrone Lupeikiene and Prof. Albertas Caplinkas devoted their talk to quality requirements negotiation in service oriented systems.

Finally, we would like to thank the authors for their contributions and the invited speakers for sharing their views with us. We are very grateful to members of the Programme Committee and the additional referees for carefully reviewing the submissions and making their recommendations.

We wish to thank all the organising team and our sponsors. We express our belated gratitude for excellent organization of the conference in memoriam to Dr. Helena Kruus. Last, but not least, we thank all the participants, who really made the conference.

Hele-Mai Haav

Ahto Kalja

Tarmo Robal

September 2014