title: How do you design data models for Bigtable/Datastore (GAE)?
body: <p>Since the Google App Engine Datastore is based on <a href="http://research.google.com/archive/bigtable.html" rel="noreferrer">Bigtable</a> and we know that's not a relational database, how do you design a <strong><em>database schema</em>/<em>data model</em></strong> for applications that use this type of database system?</p>