Act3 definition language
A high-level actor
language by Carl Hewitt. A descendant of Act2
which provides support for automatic generation of customers
and for delegation
["Linguistic Support of Receptionists for Shared Resources", C. Hewitt et al in Seminar on Concurrency, S.D. Brookes et al eds, LNCS 197, Springer 1985, pp. 330-359].