27As regards the list drawn up by the Joint Committee on Promotions on 12 June 1989 pursuant to Article 4 of Decision No 2903/81 A of the ESC of 1 December 1981 determining the composition and powers of the Promotions Committee, the Court points out, on the one hand, that Article 5 of that decision requires the appointing authority to make promotions after consulting such a list and, on the other hand, that the setting up by an institution of an advisory committee not provided for by the Staff Regulations in order to obtain an opinion, regarding appointments to certain posts, in relation to the abilities and aptitudes of candidates, having regard to the qualifications required, constitutes a measure designed to ensure that the institution, as appointing authority, has a better basis for carrying out the comparative examination of the merits of the candidates, as required by Article 45 of the Staff Regulations (see the judgment of the Court of Justice in Joined Cases 44/85, 77/85, 294/85 and 295/85 Hochbaum and Rawes v Commission [1987] ECR 3259, paragraph 16).