Warehousing and incremental evaluation for Web Site management.
Mary Fernández, Daniela Florescu, Alon Y. Levy, Dan Mircea Suciu · 1998
Recently, several systems have been proposed for building Web sites from declarative specifications. The salient feature of these systems is that they model both the structure and the content of a Web site as a view over some existing raw data. In this "Web site as view" paradigm, a critical issue is when to compute the site. One approach is to materialize the site completely before the users browse it: the disadvantages of this approach are high maintenance costs and stale data. Moreover, this approach is not applicable if the Web site has forms, because then the queries defining the Web site depends on user input. The other extreme approach is to precompute only the root(s) of the Web site, and then compute dynamically (at "click time") the queries that retrieves the information required to display the next page. In this paper we address the problem of choosing the optimal configuration for run-time management of a declaratively specified Web site, trading off the benefits of precomp...