Declarative specification of data-intensive web sites

  • Authors:
  • Mary Fernández;Dan Suciu;Igor Tatarinov

  • Affiliations:
  • AT&T Labs - Research;AT&T Labs - Research;North Dakota State University

  • Venue:
  • DSL'99 Proceedings of the 2nd conference on Conference on Domain-Specific Languages - Volume 2
  • Year:
  • 1999

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Abstract

Integrated information systems are often realized as data-intensive Web sites, which integrate data from multiple data sources. We present a system, called STRUDEL, for specifying and generating data-intensive Web sites. STRUDEL separates the tasks of accessing and integrating a site's data sources, building its structure, and generating its HTML representation. STRUDEL's declarative query language, called StruQL, supports the first two tasks. Unlike ad-hoc database queries, a StruQL query is a software artifact that must be extensible and reusable. To support more modular and reusable site-definition queries, we extend StruQL with functions and describe how the new language, FunStruQL, better supports common site-engineering tasks, such as choosing a strategy for generating the site's pages dynamically and/or statically. To substantiate STRUDEL's benefits, we describe the re-engineering of a production Web site using FunStruQL and show that the new site is smaller, more reusable, and unlike the original site, can be analyzed and optimized.