With FDI, a technology has been developed that combines the advantages of FDT with those of EDDL in a single solution. FDI takes account of the various tasks over the entire lifecycle for both simple and the most complex devices, including configuration, commissioning, diagnosis and calibration.In this handbook you will find answers to architecture, functionality, and development of the unified device integration technology:. General introduction to the world of field devices in automation engineering. The key features of the technology: FDI package, client/server structure of FDI, FDI information model, and based on examples, principle procedures. Detailled information to FDI packages, User Interface Plugins (UIP), and Open PackagingConvention, the packaging mechanism of FDI. Concrete use cases are presented as a recipe book. How to use the FDI package IDE for creating FDI packages. Overview of possible developmentsThis book is written by authors who are proven experts in the material and provides you with a rapid and informed introduction to the FDI technology.