... Up: Software Systems and Tools . ... We report on our on-going software project CIRSI Data Reduction System , which has been developed under the IRAF environment. This is a compact infrared processing and analysis software system for a wide-field infrared camera, the Cambridge Infrared Survey Instrument (CIRSI). ... CIRDR is a data reduction and analysis system for reducing and analysing data obtained from CIRSI. ... Figure 2: CIRSI Data Reduction System flowchart. ...