Patient care is a complex process with different providers located in various institutions co-operating within an integrated health environment. In spite of technical improvements in medical care, patient information is usually exchanged by paper. Digital and timely communication between regional care providers can improve the exchange of information. Different systems and missing data standards are challenges that have to be met. ByMedConnect, a project sponsored by the Bavarian State Ministry of the Environment and Public Health, develops and demonstrates a communication solution based on the EN 13606 standard. In a first step the dataset, which will be exchanged by the care providers, is defined. ByMedConnect develops the dataset in cooperation with practicing clinicians and converts it via modeling tools into archetypes that provide the base for reliable cross-sector communication. Existing heterogeneous systems are integrated via a dedicated module that transforms legacy data into a normalized representation. Information provided in a standardized form thereby enables semantic interoperability between different systems and allows medical add-on applications to connect. A secure digital communication network guarantees easy and direct data sharing. ByMedConnect aims to evaluate the achieved theoretical preliminary work in practice and to draft approaches, which can be applied beyond the pilot application.