Skip to main content
Kent Academic Repository

A single complete refinement rule for Z

Derrick, John (2000) A single complete refinement rule for Z. Journal of Logic and Computation, 10 (5). pp. 663-675. ISSN 0955-792X. (doi:10.1093/logcom/10.5.663) (KAR id:16369)


Data refinement is a well established technique for transforming specifications of abstract data types into ones which are closer to an eventual implementation. The conditions under which a transformation is a correct refinement can be encapsulated into two simulation rules: downward and upward simulations. These simulations are known to be sound and jointly complete for boundedly-nondeterministic specifications. In this note we derive a single complete refinement method and show how it may be formulated in Z, this is achieved by using possibility mappings. The use of possibility mappings themselves is not new, our aim here is to reformulate them for use within the Z specification language.

Item Type: Article
DOI/Identification number: 10.1093/logcom/10.5.663
Uncontrolled keywords: refinement; state-based systems; Z
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Computing
Depositing User: P. Ogbuji
Date Deposited: 27 Mar 2009 20:48 UTC
Last Modified: 16 Nov 2021 09:54 UTC
Resource URI: (The current URI for this page, for reference purposes)

University of Kent Author Information

Derrick, John.

Creator's ORCID:
CReDIT Contributor Roles:
  • Depositors only (login required):

Total unique views for this document in KAR since July 2020. For more details click on the image.