1. A method comprising the steps of: performing ( 220 ) a similarity distance computation between an input query case and a set of cases to retrieve similar cases by using a default set of features and weights for assessment of similarity; presenting ( 230 ) the similar cases and the default set of features and weights to a user; receiving ( 240 ) from the user input including a modified weight for at least one of the set of default features and/or at least one new feature in addition to the default set of features; and modifying ( 250 ) the similarity distance computation with the new set of features and weights for retrieving cases similar for the user.