In a related
but different context, we would like to mention the IBIS tool (Cal?¬, Calvanese,
De Giacomo, Lenzerini, Naggar, & Vernacotola, 2003). IBIS is an integration
tool following the global-as-view approach to answer queries in a mediated
system. Departing from the traditional data integration literature though, IBIS
brings the issue of data quality into the integration process. The system takes
advantage of the definition of constraints at the intentional level (e.g., foreign
key constraints) and tries to provide answers that resolve semantic conflicts
(e.g., the violation of a foreign key constraint).
??? Workflow and process models: In general, research on workflows is focused
around the following reoccurring themes: (a) modeling (Eder & Gruber, 2002;
Kiepuszewski, ter Hofstede, & Bussler, 2000; Sadiq & Orlowska, 2000; Van
der Aalst, ter Hofstede, Kiepuszewski, & Barros, 2000; Workflow Management
Coalition, 1998), where the authors are primarily concerned in providing
a metamodel for workflows; (b) correctness issues (Eder & Gruber, 2002;
Kiepuszewski et al., 2000; Sadiq & Orlowska, 2000), where criteria are established
to determine whether a workflow is well formed, and (c) workflow
transformations (Eder & Gruber, 2002; Kiepuszewski et al., 2000; Sadiq &
Orlowska, 2000) where the authors are concerned with correctness issues in
the evolution of the workflow from a certain plan to another.
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