A method of preparing a tufting process for tufting a fabric comprises the steps of: a) providing a pattern representation (10) representative of a fabric to be tufted comprising at least one tufting structure region (14), said at least one tufting structure region (14) corresponding to an area of the fabric to be tufted having a plurality of piles, b) in association with at least one tufting structure region (14), providing a tufting structure defined by a plurality of tufting structure parameters, each tufting structure parameter having an effect on the appearance of at least a part of the piles to be tufted in association with this tufting structure region and having no effect on the appearance of piles to be tufted in an area not corresponding to this tufting structure region (14).