Open OLTP (On Line Transaction Processing) is one of the fastest growing branches of computing. Tuxedo (from USL) addresses the requirements of Open OLTP in a comprehensive way. The aim of this guide is to outline the characteristics of Open OLTP environments related issues both from a conceptual and a technical point of view. The purpose of this book is therefore to assist a variety of IT professionals with their understanding of TUXEDO and with some decision-making related to it.