Grokking the System Design Interview, Volume II
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Netflix Recommendations: Requirements

Step 2: Requirements

Functional Requirements

  • Personalized Recommendations: The system should provide each user with a tailored list of content recommendations. This includes a personalized home screen with rows like “Recommended for You” and “Because You Watched X,” ensuring high relevance for each user. The recommendations should consider the user’s past behavior and preferences to surface content they are likely to engage with. Notably, a large portion of consumption (on Netflix, 75–80% of viewing) is driven by these personalized recommendations, so accuracy is crucial.

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