Data source analysis
Ontology-based data access
Mastro is an OBDA management system. Ontologies in Mastro are specified through languages of the DL-Lite family of lightweight Description Logics. The ontology is connected to external relational data management or data federation systems through a mapping establishing a semantic relation between SQL queries issued over the underlying databases and elements of the ontology. To access data, users can specify SPARQL queries over the ontology and exploit Mastro's query answering services.
Mastro Studio is a web-based platform for data management through the OBDA paradigm. Mastro Studio provides an environment for documentation and inspection of the components of an OBDA specification (ontology, mappings, and data sources), and an interface for the ontology reasoning services offered by Mastro, the OBDA reasoner at its core. An example of these services is a SPARQL endpoint, through which users can query the underlying data sources through the ontology.
The Mastro Plug-in for Protégé, the world's most popular ontology editor, allows to access all of the services provided by the Mastro system from Protégé. Along with the intentional reasoning features and the SPARQL query answering services provided by Mastro, the Plug-in also features a query engine for managing a query catalog, and an editor for Mastro mappings, through which users can create, modify, and inspect a full Mastro mapping specification, composed of the mappings for the ontology elements and the SQL views.
Eddy is a graphical editor for Graphol ontologies, which provides the user, along with the ability to compose ontology expressions and assertions in the Graphol language, also with numerous editing features explicitly tailored for Graphol. These features include, among others, real-time error checking of the ontology to prevent users from making syntactic mistakes, automatic composition of nodes and edges in the ontology diagram, and translation of the Graphol ontology into OWL 2 or one of its profiles.
The technological and scientific foundation of the products and services proposed by OBDA Systems is the research performed by its founders during the last decade in the context of semantic technologies and the use of ontologies as a tool for data access, and the experience acquired in the field during the last five years in partnership with important companies from the private and public domain.
The main outcome of these experience is the definition of the Ontology-Based Data Access paradigm, which uses knowledge representation and reasoning techniques to face key issues such as access, integration, and quality checking of data, in the context of the governance of information assets such as data, meta-data, services, and processes of modern information systems.
Open Data is another important application of our semantics technologies. Indeed, OBDM opens up the possibility of a new way of management and publishing data, with the idea of annotating data items with the ontology elements that describe them in terms of the concepts in the domain of the of interest.
Another significant achievement has been the development of the Graphol visual language for ontology modelling, which has been proven to be suitable for providing a representation of the ontology that is capable of meeting the requirements of both ontology designers and domain experts.
Some of us are a little bit shy....
Full Professor in Computer Engineering at Sapienza, he is a maximum worldwide expert in data and service modelling, knowledge representation, and semantic technologies.
Computer Engineering Ph.D. in 2015, in 2017 he co-founded and became C.E.O. of OBDA Systems. He is now actively involved in R&D, in our projects, and in travelling around the world.
CTO and Co-Founder of OBDA Systems, Ph.D. in Computer Engineering at Sapienza and all-purpose musician, he is the lead developer of the Mastro System, and coordinates the deployment of Mastro and Mastro Studio in our research and business projects.
Assistant Professor in Computer Engineering at Sapienza University, his research has contributed to the definition of the DL-Lite family of description logics, the base of the OWL 2 QL standard of the W3C, and to the creation and development of the OBDA approach.
Assistant Professor in Computer Engineering at Sapienza, she has focused her research on database theory and data integration, and now is in charge of the Magister national research project.
Assistant Professor in Computer Engineering at Sapienza, his work has focused on information and data management, in particolar on automated reasoning and inconsistency. He is a leading member of OBDA Systems's research and project development team.
Full Professor in Computer Engineering at Sapienza University of Rome, he has co-authored more than 200 scientific publications in, among others, information integration and service composition, and his research contributed to the definition of the OBDA paradigm.
Full Professor in Computer Engineering at Sapienza, his work on database theory and knowledge representation, internationally recognized and published in more than 160 top international conferences and journals on Artificial Intelligence and Databases, has lead to the development of the OBDA paradigm.
Ph.D. in Computer Engineering in 2017, Lorenzo's expertise include data access through ontologies and meta-level querying. He is part of OBDA Systems's team of developers for the Mastro and Mastro Studio systems.
When he is not playing guitar, Giacomo is the leading developer of the Mastro Protégé Plugin, and is involved in the development of the Mastro OBDA system and in our OBDA projects.
Gianluca's areas of expertise are knowledge representation and reasoning, artificial intelligence, and data management, with a specific focus on Open Data. He is involved in OBDA Systems's projects for applying the OBDA paradigm in the industrial world.
Federico is a Computer Engineer with expertise, among others, in web development. He is the lead developer for the Mastro Studio project.
Studiare S.R.L. is co-founder and partner of OBDA Systems. Studiare operates in the context of methodologies, techniques, and tools for the acquisition, representation, and the elaboration of knowledge, transferring the most recent breakthroughs in scientific innovation to these fields. Studiare is specialized in consulting for industrial innovation, in developing industrial projects and business models for innovation, ontological analysis, and information system design.