Digital transformation of cities is becoming increasingly relevant in the context of Industry 4.0. This paper explores the role of digital twins in strategic planning for the development of smart cities within the context of Industry 4.0. The paper delves into how digital
twins can be used to model urban systems, optimize management, and facilitate data-driven decision-making. A particular focus is placed on the role of digital twins in fostering sustainable and inclusive urban environments.

The article highlights the post-industrial aspects of approaches to public administration, the "model of public service", the "model of public service" - the "service feature" of relations between the state and the public, theoretical issues of the application of business models in public administration, such as Business City, Smart City, Smart state, "Provider of public services". Based on theoretical approaches, it was proposed to provide public services to the population based on the principle of "state – service provider" as one of the most optimal solutions for public administration in a post-industrial society