The paper deals with the issue of the method of arrangement of the results of a opac search.For this reason, the paper presents the conceptual structure of shelf classified arrangement of documents (filiatory sequence) by Colon Classification.It shows with examples ds durga hand soap that filiatory sequence complies with principles provided for bibliographies by Pollard and Krummel, it presents a complete structure of data and relationships provided by actual cataloguing theory, and it manages correctly relationships among a Work and its associated entities (FRBR).The paper shows that the filiatory sequence expresses a holistic vision of the catalog, essie gel couture inside scoop creating a complex bibliographic organization that represents with exhaustiveness semantic content, literary relationships, and formal features of the resources.The use of conceptual structure of filiatory sequence in ranking search results is suggested and its relevance for creating new navigating tools is highlighted.