<< Objectives >>Forms of mobile youth work/youth street work as well as outreach youth work/youth work in public spaces and online street work should be described, differentiating criteria determined, characteristics of urban and rural areas examined, positive and negative developments discussed, and potentials and further development pointed out.<< Implementation >>With a mix of social science methods, different practices are to be analyzed and described from multiple perspectives. From this, standards for quality and qualification are defined. Both youth worker and stakeholders from the community, as well as decision-makers from administration and politics are involved in the development process.<< Results >>Quality standards for special forms of open youth work in public spaces are developed and with quality and competence requirements defined. Internationally, the project contributes to further professional understanding among practitioners in open youth work, which concerns the quality development of practices and also new innovative forms of youth work, such as online street work.