Research on structural normalization of XML schema
Zheng Hua-li · Systems engineering and electronics · 2007
Most studies of XML schema was just involved in semantic normalization.The problem of structural normalization was often ignored in practice.First,two kinds of problems in designing XML schema are analyzed,and then the valid structure and well structure in structural level of XML normalization are defined.A valid-structured XML schema guarantees that it can be instanced,and a well-structural XML schema guarantees that all the elements in it are significant.Finally based on the analysis of element relationship graph,a judgment method of valid structure and well structure is put forward and some relative theorems are presented.Structural normalization of XML schema is a significant supplement for the existing studies on XML schema normalization.