A Few Considerations on Structural and Logical Composition in   Specification Theories
  Over the last 20 years a large number of automata-based specification theories have been proposed for modeling of discrete,real-time and probabilistic systems. We have observed a lot of shared algebraic structure between these formalisms. In this short abstract, we collect results of our work in progress on describing and systematizing the algebraic assumptions in specification theories. 
Axel Legay (INRIA Rennes, France), Andrzej W\k{a}sowski (IT University   of Copenhagen, Denmark)
cs.LO