The mathematical concepts and notational conventions we know of as Z were first proposed around 1981. Its origins were in line with the objectives of the PRG - to establish a mathematical basis for program ming concepts and to verify the work by case studies with industry. Hence among early Z users some were from academic circles, with interests in the mathematical basis of programming; others came from industry and were involved with pilot projects and case studies linked with the Programming Research Group. Four years ago we had the first Z User Meeting, a fairly modest affair with representatives more or less equally divided between academia and industry. At the first meeting there were, as in this meeting, a variety of technical papers, reports of work in progress and discussions. A number of people from industry came along, either because they had begun to use Z or were curious about the new direction. In the discussion sessions at the end of the meeting, there were calls from attendees for the establishment of a more stable base for the notation, including work on its documentation and standards. Many of these requests have now been satisfied and the notation is now being proposed for standards development.Proceedings of the Fourth Annual Z User Meeting Oxford, 15 December 1989 John E. Nicholls ... This text can be formatted by the LaTeX system and printed on a wide range of printers and photo-typesetters. ... It extracts the formal parts of specifications and checks for conformance to the scope and type rules of Z, as documented in the Z Reference Manual. ... 2.4.6 The ZEBRATypechecking Environment The ZEBRA typechecking environment has been developed by Bernard Sufrin ofanbsp;...

Title | : | Z User Workshop |

Author | : | John E. Nicholls |

Publisher | : | Springer Science & Business Media - 2013-03-14 |

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