The AWS Cloud Transformation Maturity Model (CTMM) maps the maturity of an IT organization’s process, people, and technology capabilities as they move through the four stages of the journey to the AWS Cloud: project, foundation, migration, and optimization. The objective of the CTMM is to help enterprise IT organizations understand the significant challenges they might face to adopt AWS, learn best practices and activities to handle those challenges, and recognize the signs of maturity or expected outcomes to gauge their maturity and readiness at every stage. This whitepaper can guide organizations to measure their readiness for the AWS Cloud, build an effective cloud transformation strategy, and drive an effective execution plan.