Use the 80/20 rule and don’t worry about corner cases Build the 20% of functionality that will deliver 80% of the expected benefit. Don’t build for scale Experiments on a busy website are usually only seen by a tiny percentage of users. Don’t bother with cross-browser compatibility With some simple filtering code, you can ensure that only users with the correct browser get to see the experiment. Don’t bother with significant test coverage You can add test coverage later if the feature is validated. Good monitoring is much more important when developing an experimentation platform.
