Introduction to Feature Change Questions

Learn how we can answer feature change questions asked in the interview.

We'll cover the following

Feature change problem

Before launching a feature, the first step we’d have to take is analyzing the existing data in our product to make a decision about exactly what to build. This process is what creates the building or change of a feature problem that gets asked in product interviews. Answering feature change questions can be tough in the moment, but in this section, we’ll go over the basic steps we have to take in order to give a comprehensive, thoughtful answer.

Questions about feature changes or additions can look like the following:

  • How would you analyze the effect of adding a green dot on LinkedIn messaging?
  • How would you analyze the effects of the close friends’ stories on Instagram?
  • How would you decide whether or not to launch a new personalized recommendation widget on the Amazon home screen?
  • How would you analyze the effectiveness of allowing users to trade fractional shares on Robinhood?

For this type of problem, let’s look the following scenario.

Let’s say that you work for Uber. A product manager wants to add a feature to the app that would increase wait times for a lower price. Is this a good idea? We’ll use this scenario to explore the challenges that can emerge with feature changes and measuring success problems in the next chapter.

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