Figure 6.

Screenshot illustrating the "smart filtering" feature implemented in the query builder. Smart filtering is an feature that enables effective selection of query parameter and their instances during query composition. Smart filtering updates the drop-down list for a selected query condition based on all the previously selected query parameters. The advantage of this approach is to eliminate selection of query parameters that will not bring any valid results.

Jayapandian et al. BMC Systems Biology 2012 6(Suppl 3):S20   doi:10.1186/1752-0509-6-S3-S20