"Z User Workshop, York 1991": Proceedings of the Sixth Annual Z User Meeting, York 16-17 December 1991 (Workshops in Computing) - Tapa blanda

Nicholls, J. E.

 
9783540197805: "Z User Workshop, York 1991": Proceedings of the Sixth Annual Z User Meeting, York 16-17 December 1991 (Workshops in Computing)
Tapa blanda
ISBN 10: 354019780X ISBN 13: 9783540197805
Editorial: Springer, 2013

Sinopsis

The mathematical concepts and notational conventions known as Z were first proposed around 1981. The objective was to establish a mathematical basis for programming concepts, and to verify the work by case studies with industry. Since 1986 there has been a steady growth in the number of Z users, and a corresponding increase in the publication of technical papers and reports of work with Z. The annual Z user meetings offer an excellent focal point for work published on Z, and provide a forum for the discussion of new developments. Z User Workshop, York 1991, provides an important overview of new developments in theoretical and practical aspects of Z. It will be of interest to academic and industrial researchers, as well as teachers of formal methods, and industrial software engineers.

"Sinopsis" puede pertenecer a otra edición de este libro.

Reseña del editor

In ordinary mathematics, an equation can be written down which is syntactically correct, but for which no solution exists. For example, consider the equation x = x + 1 defined over the real numbers; there is no value of x which satisfies it. Similarly it is possible to specify objects using the formal specification language Z [3,4], which can not possibly exist. Such specifications are called inconsistent and can arise in a number of ways. Example 1 The following Z specification of a functionf, from integers to integers "f x : ~ 1 x ~ O· fx = x + 1 (i) "f x : ~ 1 x ~ O· fx = x + 2 (ii) is inconsistent, because axiom (i) gives f 0 = 1, while axiom (ii) gives f 0 = 2. This contradicts the fact that f was declared as a function, that is, f must have a unique result when applied to an argument. Hence no suchfexists. Furthermore, iff 0 = 1 andfO = 2 then 1 = 2 can be deduced! From 1 = 2 anything can be deduced, thus showing the danger of an inconsistent specification. Note that all examples and proofs start with the word Example or Proof and end with the symbol.1.

Reseña del editor

The mathematical concepts and notational conventions known as Z were first proposed around 1981. The objective was to establish a mathematical basis for programming concepts, and to verify the work by case studies with industry. Since 1986 there has been a steady growth in the number of Z users, and a corresponding increase in the publication of technical papers and reports of work with Z. The annual Z user meetings offer an excellent focal point for work published on Z, and provide a forum for the discussion of new developments. Z User Workshop, York 1991, provides an important overview of new developments in theoretical and practical aspects of Z. It will be of interest to academic and industrial researchers, as well as teachers of formal methods, and industrial software engineers.

"Sobre este título" puede pertenecer a otra edición de este libro.

Editorial
Springer
Año de publicación
2013
Idioma
Inglés
ISBN 10 
354019780X
ISBN 13 
9783540197805
Encuadernación
Tapa blanda
Número de páginas
416
Contacto del fabricante
no disponible
Persona responsable
CMN Printpool Inh. Mathis Neumann
https://www.also.com/ec/cms5/en_6000/6000/index.jsp

Friedrich-Karl-Str. 9
Hamburg
Alemania

Otras ediciones populares con el mismo título

9780387197807: Z User Workshop, York 1991: Proceedings of the Sixth Annual Z User Meeting, York 16-17 December 1991 (Workshops in Computing)

Edición Destacada

ISBN 10:  038719780X ISBN 13:  9780387197807
Tapa blanda