b-method

from The Free On-line Dictionary of Computing (8 July 2008)

B-Method

   <programming, tool> A system for rigorous or formal
   development of software using the notion of {Abstract
   Machines} to specify and design software systems.  The
   B-Method is supported by the {B-Toolkit}.

   Abstract Machines are specified using the Abstract Machine
   Notation (AMN) which is in turn based on the mathematical
   theory of {Generalised Substitutions}.

   (1995-03-13)