Definition
Recommendation system
A system that ranks products, content, or actions for a user or context using behavior, attributes, and feedback.
Why it matters
The practical consequence.
Recommendation affects what users see and what the business prioritizes, so relevance, constraints, feedback, and monitoring must be designed together.
Example
How it appears in a system.
An auction platform can rank listings using user behavior, item attributes, marketplace conditions, and business rules.
Continue learning
Browse engineering insights →