The purpose of this article is to present the planning of a case study performed in the field of geometrical and dimensional measurement and controllability planning (GMCP, previously abbreviated GICP). The case study is carried out at the Swedish automotive company Scania CV. This article presents the preparation of the planned implementation work of the quality assurance matrix and methodology (QAM). The QAM methodology is described and will later be implemented, evaluated, and verified.

The QAM framework is primarily being applied on complex products. In this case study a pinion and a crown wheel are being used as case study objects. These two critical components create a subassembly, i.e. conical or hypoid gearbox assembly, in the rear central gearbox of a Scania truck. Critical design and process requirements, characteristics, and parameters, and their related design classification as defined by Scania CV internal standard specification, will be presented. The design classification is a major important input to the QAM model.

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