The calculation method used is based on the search for limit equilibrium conditions, it allows one to verify slopes with any ground-level geometry, and sliding surfaces that can be defined individually or grouped in families that can be circular or plane.

The analysis can be effectuated in drained or undrained conditions, or in conditions of seismic risk through pseudo-static analysis.

To design structures such as retaining or sheet-pile walls, instead of merely determining the safety factor, the programme calculates, for each potentially unstable sliding surface, the force the stabilising structure has to counteract to satisfy a given safety factor.

The programme allows the introduction of shear-resistant elements and yields excellent results in the calculation of reinforced earth.