================================================================================
P9609   T.B. Dinesh & S.M. Uskudarli
        "The VAS Formalism in VASE"


This paper discusses the visual algebraic specification VAS formalism and
its supporting interactive environment (VASE). 
The VAS formalism is intended for the definition of visual syntax and
semantics and is aimed at generating language specific environments. The
collection construct of VAS is emphasized in that it supports the
convenient specification of language constructs involving arbitrarily many
items. The VAS formalism and supporting environment are discussed by use of
an example in which the syntax, semantics and interaction of a toy language
are specified.