Semantic technologies constitute one of the most interesting technologies derived from the World Wide Web revolution. It is a field constantly reviewed in diffferent areas of knowledge and its greatest improvements for information and khowledge technologies are still there to be discovered. Within the myriads of semantic based techniques available, a great attention has been given to ontologies and how their implementation and use enhance real world applications that are not directly related to the Web itself. Ontologies offer great flexibility and capability to model specific domains, and hence, conceptualize the portion of reality to which such domain refers. Nevertheless, it is not enough to have a good modelled ontology fed with real world instances (individuals) from trustable sources of information; nowadays, it is of the utmost importance to enhance such technologies with decisional capabilities that can offer trustable knowledge in a fast way. On this regard, the introduction of concepts such as the Set of Experience Knowledge Structure (SOEKS or shortly SOE), Decisional DNA and Reflexive Ontologies (RO) lead to alternative technologies that can offer trustable knowledge.