In this paper, GAP analysis and 5S tool are applied in the case of realization of a compact pressure transmitter. GAP analysis, combined with the 5S tool, can qualitatively indicate the critical points in the manufacturing, assembly and quality control of a finished transmitter. Existing errors lead to the appearance of possible risks in the realization of production processes, from the input of raw materials to the assembly of the finished product. In order to eliminate the existing errors, the main steps of the GAP analysis are described in detail. Guidelines are provided on how to improve the workplace manufacturing process through certain improvements by applying all 5S elements. According to the implemented action plan, the main causes of risk occurrence in the GAP analysis were: human factor and processing technologies. The human factor was characterized by poor control in the workplace (there is no discipline), poor training and incompetence of employees for the given tasks. Processing technology involves obsolete machines, which can introduce deviations of dimensions and tolerances from the prescribed values.