Modern cities face a number of challenges, among which growing urbanization over the years, environmental pollution, climate change or the problem of efficient resource management play a key role. In this context, the smart city concept, based on modern technologies and innovative solutions, is becoming a leading element of development strategies. Polish voivodeship cities, as regional centres, are increasingly implementing smart city solutions to improve the quality of life of residents, increase the efficiency of government operations and promote sustainable development. The purpose of this article is to determine the extent to which the smart city idea is incorporated into the development strategies of Polish voivodeship cities, and to identify the areas in which these solutions are of greatest importance. The analysis covers six dimensions of the smart city: economy, mobility, environment, people, quality of life and governance. The study consisted of two stages: a literature analysis and a review of cities' strategic documents using thematic modelling tools.

Contemporary organizations, that are operating in a competitive, global market observe a significant increase of interest in the issues of quality management, initially in products and services, and in the consequence in the management systems, which results in the development of new methods of quality improvement in organizations. This process is determined by increasing emphasis on reducing production costs and generating savings combined with the reduction of unnecessary costs. As a result, advantageous conditions were created for the development of new quality management methods, such as: Six Sigma, Lean Manufacturing and Kaizen, which are widespread in many organizations, especially in enterprises of various industries and business profiles around the world. The article presents a selected concept of the improvement of logistics processes according to the DMAIC methodology in theoretical and practical terms. The aim of the article is to present the possibility of a practical application of the process improvement concept according to the DMAIC methodology, heading to reducing the value of production scrap in an enterprise that produces window fittings.