Sciweavers

8 search results - page 1 / 2
» Using Weakest Preconditions to Simplify Integrity Constraint...
Sort
View
ADC
1993
Springer
108views Database» more  ADC 1993»
13 years 11 months ago
Using Weakest Preconditions to Simplify Integrity Constraint Checking
We present a procedure for deriving the weakest precondition for a database update and an integrity constraint. We show how to simplify the weakest precondition to produce a condi...
Michael Lawley, Rodney W. Topor, Mark Wallace
PLDI
2009
ACM
14 years 2 months ago
A weakest precondition approach to active attacks analysis
Information flow controls can be used to protect both data confidentiality and data integrity. The certification of the security degree of a program that runs in untrusted envi...
Musard Balliu, Isabella Mastroeni
ENTCS
2006
133views more  ENTCS 2006»
13 years 7 months ago
Linking Semantic Models to Support CSP || B Consistency Checking
Consistency checking in the CSP B approach verifies that an individual controller process, defined using a sequential non-divergent subset of CSP, never calls a B operation outsid...
Neil Evans, Helen Treharne
ICMT
2010
Springer
14 years 8 days ago
Synthesis of OCL Pre-conditions for Graph Transformation Rules
Graph transformation (GT) is being increasingly used in Model Driven Engineering (MDE) to describe in-place transformations like animations and refactorings. For its practical use,...
Jordi Cabot, Robert Clarisó, Esther Guerra,...
FQAS
2004
Springer
122views Database» more  FQAS 2004»
13 years 11 months ago
Simplification of Integrity Constraints with Aggregates and Arithmetic Built-Ins
In the context of relational as well as deductive databases, correct and efficient integrity checking is a crucial issue, as, without any guarantee of data consistency, the answers...
Davide Martinenghi