Introduction to artificial intelligence
Introduction to artificial intelligence
Constraint programming languages: their specification and generation
Constraint programming languages: their specification and generation
ADA, an Advanced Introduction
A Discipline of Programming
A new approach to program testing
Proceedings of the international conference on Reliable software
Reusing Software: Issues and Research Directions
IEEE Transactions on Software Engineering
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A state constraint is a programming construct designed to restrict a program's domain of definition. It can be used to decompose a program pathwise, i.e. dividing the program into subprograms along the control flow, as opposed to dividing the program across the control flow when the program is decomposed into functions and procedures. As a result, a program consisting of one or more execution paths of another program can be constructed and manipulated. The author describes the idea involved, examines the properties of state constraints, establishes a formal basis for pathwise decomposition and discusses their uses in program simplification, testing and verification.