Subratings

Subratings are category-specific scores that accompany an overall rating in a rating system. They provide granular assessments of distinct dimensions of a product, service, or work, such as quality, usability, reliability, or impact. Subratings help users identify strengths and weaknesses and to compare items on comparable axes rather than relying solely on a single composite score.

Subratings are typically derived from a combination of data sources, including user ratings, expert reviews, objective measurements, or usage analytics. They usually conform to the same horizontal scale as the overall rating (for example, 0 to 5 or 0 to 100) and may be presented alongside the overall score in a breakdown format. Some systems require a minimum number of votes in each subcategory or apply weighting to reflect confidence in the subrating.

Design considerations for subratings include clearly defined categories, consistent scales, and transparency about how each subrating is calculated and updated. It is important to document what each subrating measures and to communicate any limitations, such as insufficient data or potential biases. Regular auditing helps prevent manipulation and ensures that the subratings remain meaningful across items and over time.

Applications of subratings span many domains. In consumer electronics, they might assess battery life, performance, and build quality. In film or games, subratings could cover acting or gameplay, graphics, and narrative. In education or services, they can break down components like participation, accuracy, or responsiveness. While subratings enhance transparency, they can also introduce complexity, so systems should balance detail with clarity to support informed decision-making.