Build on your understanding of the user and communicate what you know. Continue to use and iterate your artefacts as you progress your product development.
Your artefacts will help to challenge any preconceptions and gain empathy. Your team will also have a shared understanding of the content your users will need.
Choose a method
Choose a method and outcome that will help you to focus on the tasks people are trying to complete. Your skill will be to know where and when to apply the right method to the right context.
Every project and stakeholder group is different and you will need to achieve different outcomes and agendas. Think about the intent and the outcome to find the right set of methods for that context.