... During most of ESA's ISO mission, the mid-infrared camera ISOCAM continued to observe the sky mainly around 6.7 m with a pixel field of view of 6 in its so-called ``parallel mode'' while another instrument was prime. ... Dedicated data reduction and source extraction techniques, combined with major calibration, simulation and verification efforts, had to be developed to generate a catalogue of mid-infrared point sources candidates from data taken in the ISOCAM parallel survey (Ott 2002). ...