Data in object-oriented programming is organized in a hierarchy of classes. The problem of object-oriented pattern matching is how to explore this hierarchy from the outside. This ...
The ability to detect ambiguities in context-free grammars is vital for their use in several fields, but the problem is undecidable in the general case. We present a safe, conser...
A result checker is a program that checks the output of the computation of the observed program for correctness. Introduced originally by Blum, the result checking paradigm has pr...
We revise the classic methodology to find the multi-product break-even point. In the current paper we propose a solution to the problem under uncertainty conditions, based on Dur...
This article presents the generation and test case execution under the framework Focal. In the programming language Focal, all properties of the program are written within the sour...