Giorgio Gianforme

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We discuss a proposal for the implementation of the model management operator ModelGen, which translates schemas from one model to another, for example from object-oriented to SQL or from SQL to XML Schema Descriptions. The operator can be used to generate database wrappers (e.g., object-oriented or XML to relational), default user interfaces (e.g.,(More)
MIDST is a tool for the translation of schemas and databases from a model to another, in a framework that is flexible and extensible with respect to the family of models. The major novelties with respect to existing proposals consist in the generation of data-level translations and on the customizability of translations (at both schema and data level).
Model management is a metadata-based approach to database problems aimed at supporting the productivity of developers by providing schema manipulation operators. Here we propose MISM (Model Independent Schema Management), a platform for model management offering a set of operators to manipulate schemas, in a manner that is both model-independent (in the(More)
Many experts predict that the next huge step forward in Web information technology will be achieved by adding semantics to Web data, and will possibly consist of (some form of) the Semantic Web. In this paper, we present a novel approach to Semantic Web search, which allows for a semantic processing of Web search queries, and for evaluating complex Web(More)
A runtime approach to model-generic translation of schema and data is proposed. It is based on our previous work on MIDST, a platform conceived to perform translations in an off-line fashion. In the original approach, the source database is imported into a dictionary, where it is stored according to a universal model. Then, the translation is applied(More)
We discuss a universal metamodel aimed at the representation of schemas in a way that is at the same time model-independent (in the sense that it allows for a uniform representation of different data models) and model-aware (in the sense that it is possible to say to whether a schema is allowed for a data model). This metamodel can be the basis for the(More)
We refer to the problem of translating schemas from a data model to another, in a multi-model framework. Specifically, we consider an approach where translations are specified as Datalog-like programs. In this context we show how it is possible to reason on models and schemas involved as input and output for a translation. The various notions are(More)
Model management addresses problems dealing with forms of collaboration among heterogeneous databases. This collaboration may include exchange of data, schema integration, synchronization, translation and, in general, any issue characterized by a data evolving scenario. It provides a structured framework allowing standard solutions to data programmability(More)
To support heterogeneity is a major requirement in current approaches to integration and transformation of data. This paper proposes a new approach to the translation of schema and data from one data model to another, and we illustrate its implementation in the tool MIDST-RT. We leverage on our previous work on MIDST, a platform conceived to perform(More)