Three-dimensional calculation of ISO standards scoring results, for a probabilist calculation

Functional tolerancing requires calculating the influence of all the deviations admitted on the parts by their definition drawings according to ISO standards' to check the respect of the functional requirements. The method CLIC (Tolerancing in Localization with Influence of the Contacts) includes algorithms of choice of the specifications, an original and complete 3D method of calculation of the result based on the "analysis lines", at worse cases and in statistic, and a method of synthesis of the tolerances. This paper presents the influence of the deviations of a junction on the requirement and the decomposition of a complex requirement in sub-requirements. A three-dimensional statistical application is proposed with a presentation of the worksheet Microsoft EXCEL.