A method for augmenting an SGML document repository system with database functionality is presented. SGML (ISO
8879, 1986) has been widely accepted as a standard language for writing text with added structural information
that gives the text greater applicability. Recently there
has been a trend to use this structural information as
metadata in databases. The complex structure of docuuments,
however, makes it difficult to directly map the structural information in documents to database structures. In particular, the flat nature of relational databases
makes it extremely difficult to model documents that are
inherently hierarchical in nature. Consequently, documents
are modeled in object-oriented databases (Abite-boul,
Cluet, & Milo, 1993), and object-relational databases
(Holst, 1995), in which SGML documents are mapped into the corresponding database models and are later reconstructed as necessary. However, this mapping strategy is not natural and can potentially cause loss of information in the original SGML documents. Moreover, interfaces for building queries for current document databases are mostly built on form-based query techniques and do not use the â â look and feelâ â of the documents. This article introduces an implementation method for a complex-object modeling technique specifically for SGML documents and describes interface techniques tailored for text databases. Some of the concepts for a Structured Document Database Management
System (SDDBMS) specifically designed for SGML documents are described. A small survey of some current products is also presented to demonstrate the need for such a system.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/105183 |
| Date | 07 1900 |
| Creators | Sengupta, Arjit, Dillon, Andrew |
| Contributors | Kraft, Donald H. |
| Publisher | Wiley |
| Source Sets | University of Arizona |
| Language | English |
| Detected Language | English |
| Type | Journal Article (Paginated) |
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