Only the consistent and continuous consideration of data protection within each individual phase of the software lifecycle guarantees its seamless implementation. Thus, the requirements of data protection flowed or are flowing into the data and process model and thus into the product development of ‘AR-Check’ already at the beginning of the analysis and conception phase. In order to meet data protection and labor law requirements, we develop AR-Check according to the principle of “Privacy by Design”, in collaboration with experts from the scientific and specialist fields required for this purpose.