  SIPGI is a spectroscopic pipeline for the data reduction of
optical/near-infrared data acquired by slit-based spectrographs. SIPGI is a
complete spectroscopic data reduction environment retaining the high level of
flexibility and accuracy typical of the standard "by-hand" reduction methods
but with a significantly higher level of efficiency. This is obtained
exploiting three main concepts: 1) a built-in data organiser to classify the
data, together with a graphical interface; 2) the instrument model (analytic
description of the main calibration relations); 3) the design and flexibility
of the reduction recipes: the number of tasks required to perform a complete
reduction is minimised, preserving the possibility to verify the accuracy of
the main stages of data-reduction process. The current version of SIPGI manages
data from the MODS and LUCI spectrographs mounted at the Large Binocular
Telescope (LBT) with the idea to extend SIPGI to support other through-slit
spectrographs.
