Toward the introduction of new quality dimensions in making decision for selecting information to materialize at the mediator level

The integration of heterogeneous and distributed information sources, using mediation, while maintaining an acceptable level quality is a difficult and complex task. One of the ways to improve quality is to materialize parts of the sources at the mediator level. However, making decision of the selection of the part to store depends on several quality criteria which make it difficult. Several studies propose methods to automate the admission of data to materialize but they are all limited to five quality dimensions. In this work we suggest to identify other new criteria to consider when selecting part of sources to materialize in order to improve the overall quality of integration.