“…For example, a UML Profile (FAME) [44,45] was proposed for adding fuzzy information to UML model elements. However, most of the works on expressing uncertainty using Fuzzy set theory employ Fuzzy UML [58,59,60,91] or Fuzzy Entity-Relationship (ER) models [55,57], sometimes combined with Description logic [26,56,61,117,118,123] or with Fuzzy probabilities [111,112].…”