A Bottom-Up Approach for Integration of XML Sources.
Ronaldo dos Santos Mello, Carlos Alberto Heuser · 2001
Contribution (1,1) (1,N) (1,1) (0,N) (1,1) (1,N) (1,1) (1,N) (1,1) (1,N) (1,1) (1,N) (0,1) (1,N) (1,1) (0,N) (0,1) (1,N) (1,1) (1,N) (1,1) (1,N) (1,1) (1,N) (1,N) (1,1) (1,1) (1,1) (1,1) (1,1) Program Text (1,1) (0,N) (1,N) (1,1) Section Date Time Subject (0,N) (1,1) (1,N) (1,1) (1,N) (1,1) (1,N) (1,1) to Industry. The second alternative is exemplified by the Contribution concept, specialized as Paper and Tutorial. Mixed elements, like Program, are converted to non-lexical concepts, and the textual part (#PCDATA) of its content model is represented as a special lexical concept called Text as default. Some relationship cardinalities are determined during the process described above (e.g. that an Author has (0,1) E-Mail) through DTD analysis. Others (e.g. that an E-Mail belongs to exactly one Author) are not able to be defined (undefined cardinalities), and default values ('N' cardinalities) are suggested. Optionally, these undefined cardinalities as well as the value type of le...