The objectives of quality improvement in the OR include improved perioperative care of the patient and OR efficiency, decreased hospital length of stay, and decreased costs. We submit that multidisciplinary outcome measurement is a prerequisite for coordinated outcomes management to achieve quality patient care in an effective, efficient, and financially responsible way, and we provide a guide to do so. The data obtained by such cross-discipline study can identify the need for patient, family, and/or staff education, improved interaction and collaboration across disciplines, revision of clinical paths, and improved hospital systems as well as benchmarking the performance of the OR against local or national standards.