The purpose of the thesis was to find out how the production processes of a company that manufactures medical devices can be improved by measuring. Unambiguity, usefulness, and ease of use were important features of the indicators for the company. These goals were answered with the following research questions: which of the company’s functions are significant for improving production processes, what important indicators are available for the significant functions, and which important indicators can be reported automatically.

The research material was compiled by literature review and observation. The literature review presented background theory of research methods, economical manufacturing, management information systems, and databases. Information on the company's production processes, information systems and the indicators in use was collected through observation.

The research material was analyzed by correlation analysis, thematic analysis, and classification. Correlation analysis was used to determine which departments and functions are relevant for improving production processes. Correlation analysis was also used to find causal links between existing indicators and their benefits in order to find new indicators for the company and automation opportunities for reporting the indicators. Thematic analysis examined the relevance of all the indicators found at a general level. Finally, classification was used to examine the relevance of the indicators to the company's strategy.

The study found that the company’s most significant functions in improving production processes are quality assurance, production, and maintenance and technology development. A total of 30 important indicators were discovered, of which 24 were found to be suitable for automated reporting. The resulting indicators were found to be reliable at three different levels: the reliability of the data sources, the general relevance, and the relevance to the company's strategy. Six of the indicators found were highlighted in terms of general relevance and ten in terms of business strategy.

Of all the indicators found, OEE and inventory turnover, which were not yet used by the company, were particularly prominent in terms of general relevance. The most relevant indicators for the company's strategy were energy efficiency, resolved CAPA cases in relation to all cases, production profit, and net profit or loss on investment. It was also seen as useful for the strategy to derive efficiency indices from the above-mentioned indicators and the costs of each significant function, so that the efficiency of each function can be measured in a comparable way.