Episerver Profile Store Developer Guide
Episerver Profile Store tracks and saves data about the behavior of a website visitor each time a visitor views a product, adds a product to wish list or shopping cart, placed an order and so on. You can use actual, timely data to provide a site visitor with a custom experience.
Profile Store is the underlying data storage for Episerver Insight, which is the user interface for working with profiles and segments. See Episerver Insight.
See Installation and configuration to get started with Profile Store.