The plan for science operations of ESO's Very Large Telescopes (VLT) calls for
the production of science grade data products from all instruments. ESO
implements a two-phase strategy to achieve this goal. The first phase is the
production and operation of reduction pipelines that automatically produce
science data products without supervision. The second phase is to embed the
same pipelines into scientific workflows that can be used by scientists to
conveniently run and interact with the reduction modules on their desktop.
Reflex employs the Kepler workflow engine to provide a real-time visual
representation of a data reduction cascade, called a workflow, which can be
executed, tuned and modified by astronomers. In this poster, we present the
basic design and functionalities of REFLEX, and demonstrate some real live
example of REFLEX workflows.