  We use homological perturbation machinery specific for the algebra category
[P. Real. Homological Perturbation Theory and Associativity. Homology, Homotopy
and Applications vol. 2, n. 5 (2000) 51-88] to give an algorithm for computing
the differential structure of a small 1--homological model for commutative
differential graded algebras (briefly, CDGAs). The complexity of the procedure
is studied and a computer package in Mathematica is described for determining
such models.
