  In order to allow for an efficient and flexible scientific analysis of data
from the SPI imaging spectrometer aboard INTEGRAL, I developed a set of
analysis executables that are publicly available through the internet. The
software is fully compatible with the ISDC data format. It complements software
that is actually available through ISDC, and will be included in the next ISDC
software release. This paper describes the design of my software system and
provides a brief introduction to the executables.
