Recommendation systems
Who it is for. A company with a catalog, a feed, or a next step, where showing the wrong item costs a sale or a click.
What we build. A ranking of what to show next, based on behaviour and on the goal of that screen.
How the work goes. We define the action you want, look at the data you can use, and put the ranking where the person already chooses.
What you leave with. A list you can explain and change, measured against the action you care about.