this book provides practitioners with an overview of the principles & methods needed to build reliable biometric systems. it covers 3 main topics: key biometric technologies, testing & management issues, & the legal and system considerations of biometric systems for personal verification/identification. it focuses on the 4 most widely used technologies - speech, fingerprint, iris & face recognition. it includes: · in-depth coverage of the technical and practical obstacles which are often neglected by application developers & system integrators & which result in shortfalls between expected and actual performance; · detailed guidelines on biometric system evaluation; · protocols & benchmarks which will allow developers to compare performance & track system improvements. biometric systems - technology, design and performance evaluation is intended as a reference book for anyone involved in the design, management or implementation of biometric systems.