Flexible queries in distributed structured and semistructured documents Lecon, Carsten Hinze, Annika Herden, Olaf Doctoral Consortium of the Conference on Advanced Information Systems Engineering <8, 2001, Interlaken>
Flexible queries in distributed structured and semistructured documents
Freie Universität Berlin, Fachbereich Mathematik und Informatik : Ser. B, Informatik ; 01,04
004 Datenverarbeitung; Informatik
The goal of the thesis is to solve the task of defining a flexible query language
for distributed structured and semistructured data and to implement this
language. For example, data can be represented as HTML files in the file system,
whereby an XML document contains metadata about these files. Hence,
these two data sources have to be merged appropriately. In order to satisfy
the needs of the heterogeneous group of users, a flexible adaptable query language
is required. Therefore a query model is developed which serves as a
basis for an abstract syntax for query languages; this abstract syntax can be
translated in concrete textual as well as graphical query languages. An implementation
of the ideas proposed in the thesis is done in the area of virtual
courses, especially in the project ”Virtual University of Applied Sciences”.
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