The main objective of the project is to develop multidisciplinary operating cultures related to services for children, young people, and families, as well as the services produced in them, to better meet the needs of the customer and their close ones. The social and health care reform, along with the cost pressures on welfare areas and municipalities, has brought challenges to the development of services. Operating cultures are developed by strengthening collaboration among professionals in the social and health care fields, fostering both sector-specific and shared expertise. The goals are pursued through the use of dialogue and digital tools, which take into account the requirements of case-by-case situations, competence, change, knowledge work, and multidisciplinarity in organizing and operating services. The project aims to streamline multidisciplinary collaboration among social and health care professionals, increase dialogical interaction in collaboration and customer service situations, and support collaborative learning. The goal is also to provide solutions to the cycle of developmental projects in the field; how can the results of projects aimed at developing various competencies be implemented into practice in a way that allows their benefits to be genuinely utilized in everyday life with current or potentially decreasing resources in the future? Since the evaluation covers the current situation, the adoption and internalization of new knowledge, and changes in operations, the assessment of the project's results extends to the work performance phase. At the conclusion of the project, professionals in the social and health care fields will have better conditions to implement multidisciplinary collaboration in a customer-centric, open, and dialogical framework. Additionally, the project will revitalize the attractiveness and retention of professionals in the social and health care fields by developing multidisciplinary operating cultures and related processes to support the well-being and satisfaction of both individual workers and work communities. Leaders and managers in the social and health care fields, especially those in SOTEKO roles, are actively involved in the collaborative development process, enabling the acquired knowledge to be systematically integrated into the structures and practices of operating cultures and everyday customer work. The project creates conditions for the development of a dialogical, cross-disciplinary operating culture both during the collaborative development phase and through the DIDI (dialogue, digitalization, and expertise integration) model that emerges as a result of the project. With the implementation of the DIDI model, the effectiveness and smoothness of multidisciplinary collaboration increase, considering the customer's benefit, experiences of being encountered, and participation, including the involvement of the customer's close ones. The development of the model is based on the latest research and the current experiences of the target groups regarding the implementation of multidisciplinary collaboration and customer encounters. At the end of the project, the DIDI model, co-developed with regional development groups, is tested and piloted, and it will be operationalized nationally for all relevant actors in the social and health care fields. The project utilizes the Quality-Output Indicator of the Innovative and Competent Finland 2021-2027 program. To assess the quality and impact of services, the project investigates the experiences of individuals in leadership and managerial roles in the social and health care fields, other staff, customers, and stakeholders regarding their participation and the improvement of collaboration. The measurement of the change in the experience of participation will, where possible, use a participation indicator developed and validated by the National Institute for Health and Welfare (THL). The assessment of service quality and impact, conducted in the spirit of collaborative development of the DIDI model, becomes part of the model and material's DIDI guidelines. The evaluation and monitoring of service quality and impact continue automatically after the project when the model and material are used. The key objectives of the project can be summarized as follows: 1. Co-develop a dialogical model for opening nodes in multidisciplinary collaboration and an online training program (DIDI) to guide its implementation. 2. Develop functional content for the DIDI online training for professionals and work communities in different government sectors, as well as for multidisciplinary networks connecting them, to construct a dialogical collaborative development culture, implement it, and root it. 3. Create practices within the DIDI model to systematically identify obstacles to the development of dialogue and dialogical skills, and examine and improve these in relation to the implementation of knowledge work, situations of change, digit