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Viewing WISs as Database Applications.
- Source :
-
Communications of the ACM . Jul98, Vol. 41 Issue 7, p101-102. 2p. - Publication Year :
- 1998
-
Abstract
- In the article, authors say that although Web information is meant to be consumed by human beings, applications that process it automatically are both conceivable and desirable. A useful abstraction for modeling these problems is to view the Web as a collection of, usually small and heterogeneous, databases, and to view programs that extract and process Web data automatically as database applications. WebOQL system, developed at the University of Toronto, is a tool for building the software layer through which such programs can view Web data in a uniform, convenient format and can effectively manipulate it using a declarative query language. In WebOQL, every data source is logically viewed as a graph of trees where every arc in a tree or graph is labeled with a record. The mapping between a data source and this logical view is performed by wrappers dynamically, as queries are executed. WebOQL queries can be embedded in Java programs like SQL queries are embedded in C programs.
Details
- Language :
- English
- ISSN :
- 00010782
- Volume :
- 41
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Communications of the ACM
- Publication Type :
- Periodical
- Accession number :
- 11872505
- Full Text :
- https://doi.org/10.1145/278476.278496