1. CQL is a language to query data from caGrid/caBIG services. This workflow is tested with Taverna 2.1.2 and the caGrid Workflow Suite downloadable from http://www.mcs.anl.gov/~wtan/t2/. 2.More information regarding CQL can be found from http://wiki.cagrid.org/display/dataservices. 3. Sample input (95) is provided in the workflow. It is to query all the hybridization data within a microarray experiment whose id is 95.