What would a marketer include in a recipe if they want the visitor affinity score when showingrecommendations?

The Sitemap is implemented to manage which channel solution? 

Which role would the admin assign a user if they need to view everything in interaction studio and create, update, publish and delete campaigns and recipes?

Which ingredient shows a vistor products or content based on a "people like me" algorithm? 

What attribute and value is passed in the event API request for returning server side campaigns? [check]