Data modeling is the process of figuring out how data should be represented and stored in your software system. Effective data models must balance between application needs, database performance characteristics and the structure of the data itself. But why would you care about data modeling if you’re a frontend developer? Well, understanding how data flows through your application, will help you consume your backend API in a more efficient way. In this talk, we’ll go through the basics of data modeling - from identifying relationships and cardinalities, to handling staleness and duplication. We’ll be discussing the data modeling methodology in the context of MongoDB, a NoSQL document database.