Today the proliferation of the availability of the information of scientific events on the Web has created the necessity tooffer a quickly access to up-to-date information about the quality of these events. This requirement demands for (semi) automatictools to speedily provide this information. The human-performed activity of the information quality evaluation is extremelytime consuming and easily leads to failures. The application OntoQualis here described was motivated to support the qualityevaluation of Scientific Conferences, in the Computer Science area, based on the graduated programs evaluation protocol ofthe Brazilian agency CAPES. The evaluation mechanism is specified in the QUALIS document specifically designed to assess journalsand conferences ranking. This paper presents a brief vision of the ongoing process of domain analysis and ontology prototypingaiming to classify Scientific Conferences: the OntoQualis project. Some results of OntoQualis preliminary evaluation haveshown a satisfactory classification level in comparison with CAPES-QUALIS ranking.