  Process algebra provides abstract and rigorous means for studying
communicating concurrent systems. Coordination languages also provide abstract
means for the specifying and programming communication of components. Hence,
the two fields seem to have very much in common and the link between these two
research areas have been established formally by means of several translations,
mainly from coordination languages to process algebras. There have also been
proposals of process algebras whose communication policy is inspired by the one
underlying coordination languages.
  The aim of this workshop was to push the state of the art in the study of the
connections between process algebra and coordination languages by bringing
together experts as well as young researchers from the two fields to
communicate their ideas and findings. It includes both contributed and invited
papers that have been presented during the one day meeting on Process Algebra
and Coordination (PACO 2011) which took place on June 9, 2011 in Reykjavik,
Iceland.
