Enterprise architecture defines a firm's needs for standardised tasks, job roles, systems, infrastructure, and data in core business processes. Thus, it helps a company to articulate how it will compete in a digital economy and it guides managers' daily decisions to realise their vision of success. This book clearly explains enterprise architecture's vital role in enabling - or constraining - the execution of business strategy. The book provides clear frameworks, thoughtful case examples, and a proven-effective structured process for designing and implementing effective enterprise architectures.