Z++

Z++ (pronounced zed plus plus) is an object-oriented extension to the Z specification language.

Z++ allows for the definition of classes, and the relation of classes through inheritance, association, or aggregation. The primary construct of Z++ is a class. A Z++ class consists of a number of clauses which are optional.

Z++ class structure

CLASS ClassName
  [OWNS List_of_attributes]
  [FUNCTIONS constant_definitions]
  [TYPE type_declaration]
  [ENTENDS list_of_super_classes]
  [OPERATIONS list_of_state_change_operations_definitions]
  [RETURNS list_of_query_operations_definitions]
  [ACTIONS all_operations_declarations]
  [INVARIANT predicates]
  [HISTORY RTL_predicates]
END CLASS

References

This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.

Lano, K.C., Z++, an Object-Oriented Extension to Z. Z User Workshop, Oxford 1990, Springer, Workshops in Computing, 1991, pp. 151–172.
Lano, K.C., Formal Object-Oriented Development. Springer-Verlag, London, 1995.
AAOB - Thesis 2009.

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Z++

Z++ class structure

See also

References