Maude is a high-performance reflective language and system supporting
both equational and rewriting logic specification and programming for
a wide range of applications. Maude has been influenced in important
ways by the OBJ3 language, which can be regarded as an equational
logic sublanguage. Besides supporting equational specification and
programming, Maude also supports rewriting logic computation.
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Rewriting logic is a logic of concurrent change that can naturally
deal with state and with concurrent computations. It has good
properties as a general semantic framework for giving executable
semantics to a wide range of languages and models of concurrency. In
particular, it supports very well concurrent object-oriented
computation. The same reasons making rewriting logic a good semantic
framework make it also a good logical framework, that is, a metalogic
in which many other logics can be naturally represented and executed.
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Maude supports in a systematic and efficient way logical
reflection. This makes Maude remarkably extensible and powerful,
supports an extensible algebra of module composition operations, and
allows many advanced metaprogramming and metalanguage
applications. Indeed, some of the most interesting applications of
Maude are metalanguage applications, in which Maude is used to create
executable environments for different logics, theorem provers,
languages, and models of computation.
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Maude is of interest to the biomedical community for modeling and
analysis of biological systems.
