When care professionals from different organisations are involved in patient care, their different views on the care process may not be meaningfully integrated. Objective: To use visualisation and interaction design solutions addressing the specific demands of shared care in order to support a collaborative work process. Methods: Participatory design, comprising interdisciplinary seminar series with real users and iterative prototyping, was applied. Results: A set of interaction and visualisation design solutions to address care professionals' requirements in shared home care is presented, introducing support for identifying origin of information, holistic presentation of information, user group specific visualisation, avoiding cognitive overload, coordination of work and planning, and quick overviews. The design solutions are implemented in an integrated virtual health record system supporting cooperation and coordination in shared home care for the elderly. The described requirements are, however, generalized to comprise all shared care work. Conclusion: The presented design considerations allow healthcare professionals in different organizations to share patient data on mobile devices. Visualization and interaction design facilitates specific work situations and assists in handling specific demands in shared care. The user interface is adapted to different user groups with similar yet distinct needs. Consequently different views supporting cooperative work and presenting shared information in holistic overviews are developed.