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    STUDIA INFORMATICA - Issue no. Sp.%20Issue%202 / 2014  
         
  Article:   TRIADIC APPROACH TO CONCEPTUAL DESIGN OF XML DATA.

Authors:  CHRISTIAN SĂCĂREA, VIORICA VARGA. 		 
       
         
  Abstract:   As XML becomes a popular data representation and exchange format over the web, XML schema design has become an important research area. Discovering XML data redundancies from the data itself becomes necessary and it is an integral part of the schema re finement (or re-design) process. Di fferent authors present the notion of functional dependency in XML data and normal forms for XML data. Yu and Yagadish (2008) give the defi nition of the Generalized Tree Tuple (GTT) and XNF normal form. They present also a hierarchical and a at representation of XML data. The hierarchical representation of XML data from the paper of Yu and Yagadish (2008) is used to defi ne a triadic FCA approach for a conceptual model of XML data. The formal tricontext of functional dependencies with respect to a tuple class is given.

2010 Mathematics Subject Classi fication. 68P15, 03G10.1998 CR Categories and Descriptors. H.2.1 [Database Management]: Logical design - Scheme and subschema.

Key words and phrases. XML data design, Formal Concept Analysis.
 
         
     
         
         
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