Abstract. This paper describes how high level implementations of (needed) narrowing into Prolog can be improved by analysing definitional trees. First, we introduce a refined repre...
The paper puts forward the idea of using fault tolerance refinement patterns to assist system developers in disciplined application of software fault tolerance mechanisms in rigor...
Almost every company needs to process invoices to either claim money from their customers or to pay for products or services. Although companies are allowed to electronically proce...