A method of assembling a garment for a person comprises assembling a collection of different versions of each of a plurality of different parts of a garment, e.g. sleeves, bodices, skirts, etc., presenting the collection of garment parts to a customer for selection, fitting individual selected ones of the garment parts. In the production of a garment, at first garment model is designed. Then, according to model requirements, a sort of fabric are cut as well as classified due to their sewing sequences. Then, cut fabrics are sewn and assembled in order to form a garment.