EBU Single Rulebook Q&A 13 September 2013 2013_240 How shall an institute explain a rating decision?

Article 431, paragraph 4 says that "institutions shall, if requested, explain their rating decisions to SMEs and other corporate applicants for loans, providing an explanation in writing when asked." Shall this be interpreted as institutions shall show the exact probability of default for the applicants or the applicants rating on the institutions internal rating scales or in any other way?