Paul Allen is a principal business-IT strategist at CA and is widely recognized for his innovative work in component-based development (CBD), business-IT alignment and service-oriented architecture. With over thirty years experience of large-scale business systems, he is an established author whose previous book was the critically acclaimed Realizing e-Business with Components. Sam Higgins is now with Forrester Research Inc.; formerly he managed the Innovation and Planning Unit of Queensland Transport's Information Services Branch. Paul McRae is the application architect in the Innovation and Planning Unit of Queensland Transport's Information Services Branch. Hermann Schlamann is a senior architect in the architecture group of Credit Suisse.