Design Normalized schema Order = { _id : orderId, user : userInfo, items : [ productId1, productId2, productId3 ] } Product = { _id: productId, name : name, price : price, desc : description } 01. 02. 03. 04. 05. 06. 07. 08. 09. 10. 11. 12. 13. 14. 15. * Link to collection of product Order • _id • user • items *