Requirements of Quora's Design

Define the features and workload for the Q&A service, then estimate content growth and average transfer rates. User counts alone do not determine peak request rates.

Requirements

The design will support the following features and operating requirements:

Functional requirements

• Questions and answers: Users can post questions and answers containing text, images, and videos.

• Interactions: Users can upvote, downvote, and comment on answers.

• Search: Users can search for existing questions on the platform.

• Feed and recommendation: The system generates a personalized feed based on user interests to facilitate discovery.

• Ranking: Order answers using signals intended to predict usefulness. Define how to evaluate the ranking and how users can report misleading content.

Non-functional requirements