GRAFIS CAD works with the construction principle as a standard procedure. Body measurement charts are used to draft basic blocks which are then, modified into styles and production patterns. The interactive basic blocks delivered with the GRAFIS CAD software relate to the measurement charts.

The large number of interactive basic blocks delivered with GRAFIS CAD such as bodice, trousers, skirt, sleeve, collar, pockets and others contain drafting instructions which are recalculated with the selected measurement charts. These interactive basic blocks can easily be altered through click and drag or numerical entry offering a wealth of options for fit optimisation and style modification.

During grading individual points can be influenced through adjustment of break sizes. As GRAFIS CAD works with a hereditary structure, connections between parts are created automatically. Alteration of a development part leads to recalculation of all parts and therefore, adjustment of all dependent pattern pieces. This dependency achieves effective and fast creation of style variations.