HarmonyOR ensures that the right resource is in the right place at the right time for the right patient. Surgeon preference cards are used universally in operating rooms by nurses to prepare for a surgical procedure based on the surgeon's practice. HarmonyOR offers preference cards, viewed on an interactive tablet, delivering data on needs to supply chain based on cases scheduled. The interaction enables a prospective inventory stream rather than a retrospective system based on past usage to set par levels. Other aspects/features include vendor integration, mobile communication and feedback loops that ensure surgical postings are accurate and all caretakers are working with relevant information.