Relatively quality value is described. In an implementation, a method includes calculating a mean success rate for a plurality of products utilized by a plurality of clients. For each of the products, a degree is determined, to which, either a first set of the clients or a second set of the clients predominate. The first set of clients have a success rate that is greater than or equal to the mean success rate and the second set of clients have a success rate that is less than or equal to the mean success rate. For each of the products, a relative quality value is calculated based on the mean success rate and the determined degree.