This book delves deeply into the world of evaluating the value and impact of ICT and digital transformation initiatives, serving as an invaluable manual for anyone seeking to comprehend this complex world.Traditionally, the outcomes of digitisation have been assessed through economic growth rates and unemployment rates from a macro perspective, and profitability and productivity indicators have been used for individual companies. However, to holistically evaluate the effects of digitisation, it's crucial not only to take into account economic indicators and corporate performance but also to accurately account for benefits returned to consumers.This book aims to measure the 'improvement in consumer convenience' brought about by digitisation in addition to economic growth indicators and corporate profitability and productivity indicators. It consists of theoretical considerations, explanations of research analysis methods, and case studies using this method. Whether you're a CEO steering a corporation through the labyrinth of digital transformation, a policy maker designing a national ICT strategy, or a scholar seeking an in-depth understanding of this intricate subject, this book will be a valuable addition to your knowledge base. Regardless of your role in the ICT/DX ecosystem, this work is guaranteed to be an invaluable resource.