Parametrical modeling is the method to generate solid volumes with the help of parameters. As a rule, any parameter which is used for generating geometrical elements can be modified - this implicates as a consequence a modification of the part as well as the associatively derivedgeometry from the solid volume.
It's facile to establish relations between the original elements (parameters) and those elements emerging out of it (associativities). The relations are working in a hierarchical structure, the "first" element is virtually the parent of all the other consecutively elements.

The benefit is the optimal reusability of design components, the best possible record and documentation of the procedure and intentions of the designer at every component - which is an important point in the design process which is more and more based on the division of labor. So members of the same design team can exchange their results in the joint design process very easily among each other and get an profound understanding of what the colleague has done and why he is doing it this way. Another advantage is the capability of fast modifications in variant construction because the order of the single construction steps as well as the geometric parameters are saved chronologically and are saved in a clear and transparent form. The fundamental advantage of this history-based modeling is this transparency and the high degree of flexibility. The model geometry can be adjusted any time afterward in various ways by changing and modifying the underlying single construction steps. Additionally the fully parametric 3D product model will contribute to the decline of 2D drawing printouts, due to the fact that the extensive information content of the SolidWorks^® model isn't visible on this primitive media, eDrawings files will be used instead to share design information in a safe and convincing way.

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