Clesio Saraiva dos Santos

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This work presents an extension of the ODMG standard, called TV_ODMG. This extension aims to support object versioning and temporal features, like transaction and valid times. The extension is based on the Temporal Versions Model, an object-oriented data model that keeps object versions and, for each version, the history of the dynamic properties values.(More)
This paper presents an approach to configuration definition based on attributes of structured documents. The application of this mechanism is the GDOC (acronym for Document Management, in Portuguese) system, which implements an innovative data model for storing documents in a relational database and handles them in an Intranet. The GDOC system supports(More)
model space that consists of the semantic and the temporal dimensions. The evolution of data objects can quickly become intractable if it is not captured and Vocabulary evolution and versioning: ontologies, vocabularies, data level changes that in turn are more schema-specific and dependent on semantics. A formal model for temporal schema versioning in(More)
The Temporal Versions Model (TVM) is an Object Oriented Data Model developed to store the object versions and, for each version, the history of its dynamic attributes and relationships values. In this work, we propose a query language for this model. The language, called Temporal Versioned Query Language TVQL, is based on SQL, adding new features to recover(More)