ORA-SS: An Object-Relationship-Attribute Model for Semi-Stractured Data

Simple item page
dc.contributor.authorGillian DOBBIEen_US
dc.contributor.authorXiaoying WUen_US
dc.contributor.authorTok Wang LINGen_US
dc.contributor.authorMong Li LEEen_US
dc.date.accessioned2004-10-21T14:28:52Zen_US
dc.date.accessioned2017-01-23T07:00:04Z
dc.date.available2004-10-21T14:28:52Zen_US
dc.date.available2017-01-23T07:00:04Z
dc.date.issued2000-12-01T00:00:00Zen_US
dc.description.abstractSemi-structured data is becoming increasingly important with the introduction of XML and related languages and technologies. The recent shift from DTDs (document type definitions) to XML-Schema for XML data highlights the importance of a schema definition for semi-structured data applications. At the same time, there is a move to extend semi-structured data models to express richer semantics. In this paper we propose a semantically rich data model for semi-structured data, ORA-SS (Object-Relationship-Attribute model for Semi-Structured data). ORA-SS not only reflects the nested structure of semi-structured data, but it also distinguishes between objects, relationships and attributes. It is possible to specify the degree of n-ary relationships and indicate if an attribute is an attribute of a relationship or an attribute of an object. Such information is lacking in existing semi-structured data models, and is essential information for designing an efficient and non-redundant storage organization for semi-structured data.en_US
dc.format.extent541753 bytesen_US
dc.format.extent569408 bytesen_US
dc.format.mimetypeapplication/pdfen_US
dc.format.mimetypeapplication/postscripten_US
dc.identifier.urihttps://dl.comp.nus.edu.sg/xmlui/handle/1900.100/1423en_US
dc.language.isoenen_US
dc.relation.ispartofseriesTR12/00en_US
dc.titleORA-SS: An Object-Relationship-Attribute Model for Semi-Stractured Dataen_US
dc.typeTechnical Reporten_US
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
report.ps
Size:
556.06 KB
Format:
Postscript Files
Description:
Download
Thumbnail Image
Name:
report.pdf
Size:
529.06 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.52 KB
Format:
Plain Text
Description:
Download
Collections
Technical Reports