Which AWS framework or tool should a company use to evaluate its readiness to migrate applications to the AWS Cloud?

The AWS Cloud Adoption Framework (AWS CAF) helps organizations develop an efficient and effective plan for their cloud adoption journey. It provides guidance across six perspectives: Business, People, Governance, Platform, Security, and Operations, allowing a company to assess its readiness and identify gaps before migrating applications. The AWS Pricing Calculator is used to estimate the cost of AWS services, not to assess migration readiness. The AWS Well-Architected Framework provides best practices for designing and operating reliable, secure, efficient, and cost-effective systems in the cloud, which is typically applied after migration planning or during design. AWS Budgets allows setting custom budgets to track costs and usage, which is a cost management tool, not a migration readiness assessment tool.