Across the globe, healthcare delivery is being transformed by electronic sharing of health information. Such large scale health projects with a national focus are a challenge to design and implement. Delivering clinical outcomes in the context of policy, technical, and design environments represents a particular challenge. On July 1, 2012, Australia delivered the first stage of a personally controlled electronic health record – a national program for sharing a variety of health information between health professionals and between health professionals and consumers. As build of the system commenced, deficiencies of the traditional stakeholder consultation model were identified and replaced by a more structured approach, called clinical functional assurance. Utilising clinical scenarios linked to detailed design requirements, a team of clinicians certified clinical utility at implementation and release points.