This project investigates what and how information should be delivered to staff in hospital operating rooms. I have designed a holistic platform for critical in-operation information. I have worked in operating rooms observing heart procedures, which are high-risk procedures. The team performing these operations depend on accessible and precise information, to ensure that the procedure is done adequately. This diploma aims to improve how information is delivered to the team and how they access it. As the team members have different needs for information, I have tailored the information delivery to meet their needs. Using technology like augmented reality and voice recognition, in addition to conventional interface design, I have tried to re-think how information is provided to the team.