Connectors as Designs: The Time Dimension

Compositional coordination models and languages serve as a means to formally specify and implement component and service connectors. They support large-scale distributed applications by allowing construction of complex component connectors out of simpler ones. In this paper, we extend the design model for the channel-based coordination language Reo by introducing designs for timed connectors. Design is a key concept in Unifying Theories of Programming (UTP), which is used to describe the contract between programmer and client. The model developed in this paper specifies properties of timed channels and timed component connectors properly. Implementation of the design model developed in JTom is provided.