The Discover phase is when you gather all stakeholders and decision-makers together to understand the current state and business drivers, and to determine the migration or modernization needs.
In this phase, you explore technologies and discuss potential approaches. Identify the existing pain points, concerns, requirements, and some potential challenges. Define the high-level business priorities and scope of the assessment. Determine in what ways you want to modernize your application development and delivery to allow you to innovate more rapidly.
Typically, this can be covered in a day in a workshop with Red Hat experts.