An earlier name for Google updates focused on product-review content, preceding the broader reviews system terminology.
This term concerns editorial reviews that evaluate products, not every customer rating submitted to a business profile. That distinction matters because the content owner, purpose and improvement process can be entirely different.
A useful review helps someone choose. Explain the basis of the evaluation, relevant trade-offs and the circumstances in which an option is suitable. Repeating specifications or presenting affiliate promotions as hands-on testing can leave a reader without meaningful evidence.
When reviewing older advice, use current reviews-system documentation to understand its scope. Do not assume that adding a star-rating widget or requesting more business reviews is the corrective action for an editorial product-comparison page.
Takeaway: Make comparison content useful and transparent about how conclusions were reached, including any limits on firsthand experience.
Example
A retailer compares two tools using documented specifications and its own measured tests. It labels the tests accurately and explains which buyer needs each option suits rather than declaring one universally best.
What to check
Keep evidence, dates and review methods available to the editor. Separate editorial reviews from user-generated ratings in reporting.
For more detail, see Google reviews system documentation.