Amazon.com description: Product Description: Promise Theory bridges the worlds of semantics and dynamics to describe interactions between autonomous agencies within a system. It provides a semi-formal language for modelling intent and its outcome, which results in a chemistry for cooperative behaviour. This book is aimed at scientists and engineers. It introduces readers to promises in a practical manner, keeping within the paradigm of `voluntary cooperation'. The book draws on examples from the real world, with a special emphasis on computers and information systems.