DCFS, the International Workshop on Descriptional Complexity of Formal Systems is an annual academic conference in the field of computer science.
Beginning with the 2011 edition, the proceedings of the workshop appear in the series Lecture Notes in Computer Science.
Already since the very beginning, extended versions of selected papers are published as special issues of the International Journal of Foundations of Computer Science, the Journal of Automata, Languages and Combinatorics, of Theoretical Computer Science, and of Information and Computation In 2002 DCFS was the result of the merger of the workshops DCAGRS (Descriptional Complexity of Automata, Grammars and Related Structures) and FDSR (Formal Descriptions and Software Reliability).
The workshop is often collocated with international conferences in related fields, such as ICALP, DLT and CIAA.
In a talk on the occasion of the 10th anniversary of the workshop, Dassow (2009) gave an overview about trends and directions in research papers presented at DCFS.