Business pressures demand faster time to market and app modernization. Your existing estate determines the best approach to modernization. Containers, Kubernetes, and microservices are proven to deliver speed and simplicity, and are being adopted rapidly. In this environment of rapid change, app modernization is driven by the need to transform business to build new capabilities and deliver them quickly. To get started on your modernization journey, you must understand the approaches that are right for your inventory. Read this field guide to gain a high-level overview of IBM’s application modernization approach.