Papers by Cássio Chaves Reginato

Building proper reference ontologies is a hard task. There are a number of methods and tools that... more Building proper reference ontologies is a hard task. There are a number of methods and tools that traditionally have been used to support this task. These include the use of foundational theories, the reuse of domain and core ontologies, the adoption of development methods, as well as the support of proper software tools. In this context, an approach that has gained increasing attention in recent years is the systematic application of ontology patterns. However, a pattern-based approach to ontology engineering requires: the existence of a set of suitable patterns that can be reused in the construction of new ontologies; a proper methodological support for eliciting these patterns, as well as for applying them in the construction of these new models. The goal of this paper is twofold: (i) firstly, we present an approach for deriving conceptual ontology patterns from ontologies. These patterns are derived from ontologies of different generality levels, ranging from foundational to domain ontologies; (ii) secondly, we present guidelines that describe how these patterns can be applied in combination for building reference domain ontologies in a reuse-oriented process. In summary, this paper is about the construction of ontology patterns from on-tologies, as well as the construction of ontologies from ontology patterns.

Standards are documents that aim to define norms and common understanding of a subject by a group... more Standards are documents that aim to define norms and common understanding of a subject by a group of people. In order to accomplish this purpose, these documents must define its terms and concepts in a clear and unambiguous way. Standards can be written in two different ways: by informal specification (e.g. natural language) or formal specification (e.g. math-based languages or diagrammatic ones). Remarkable papers have already shown how well-founded ontology languages provide resources for the specification’s author to better distinguish concepts and relations meanings, resulting in a better specification. This paper has the objective to expose the importance of truly ontological distinctions for standardizations. To achieve this objective, we evaluate a math-based formal specification, in Z notation, using a well-founded ontology language for a telecommunications case study, the ITU-T Recommendation G.805. The results confirm that truly ontological distinctions are essential for clear and unambiguous specifications.
This paper presents patterns to align domain
models of information systems represented in UML cla... more This paper presents patterns to align domain
models of information systems represented in UML class
diagrams. The main objective is to facilitate the process of
interoperating systems applying a method to perform a
conceptual integration of the existent models. This method
regards ontological distinctions of Object Types for
enhance the accuracy of the intended semantic of the
concepts.
Building proper reference ontologies is a hard task. There are a num- ber of methods and tools th... more Building proper reference ontologies is a hard task. There are a num- ber of methods and tools that traditionally have been used to support this task. These include foundational theories, reuse of domain and core ontologies, de- velopment methods, and software tool support. In this context, an approach that has gained increased attention in recent years is the systematic application of ontology patterns. This paper discusses how Foundational and Domain-related Ontology Patterns can be derived, and how they can be applied in combination for building more consistent ontologies in a reuse-centered process.
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Papers by Cássio Chaves Reginato
models of information systems represented in UML class
diagrams. The main objective is to facilitate the process of
interoperating systems applying a method to perform a
conceptual integration of the existent models. This method
regards ontological distinctions of Object Types for
enhance the accuracy of the intended semantic of the
concepts.
models of information systems represented in UML class
diagrams. The main objective is to facilitate the process of
interoperating systems applying a method to perform a
conceptual integration of the existent models. This method
regards ontological distinctions of Object Types for
enhance the accuracy of the intended semantic of the
concepts.