Enabling Data Sharing for Hospital-to-Community Transitions in the Toronto Region: A Stakeholder-Informed System Architecture Solution

Ontario's healthcare system, with the Toronto region in particular, continues to face major data sharing gaps between hospitals and community agencies. This paper draws on findings from 26 multi-sector stakeholder interviews. It presents a system-level architecture targeting standardized discharge communication and supports provincial interoperability. A House of Quality (HOQ) matrix was used to map stakeholder requirements to functional features [1]. The proposed solution is a centralized discharge eHub platform leveraging existing eReferral infrastructure under the Patients before Paperwork (Pb4P) initiative, layered with interoperability features, electronic medical record (EMR) integration, secure information-sharing, and analytics capabilities to improve continuity of care. The architecture is positioned as an interoperability-enabling mechanism to close cross-sector data gaps.