Peter Haug is a Medical Informaticist working at Intermountain Healthcare and a Professor in the Department of Biomedical Informatics at the University of Utah. He specializes in informatics research and has been active in clinical research and postgraduate education. His expertise lies in (1) the study of tools for natural language processing in medicine; (2) the evaluation of probabilistic decision support systems for use in the health care process; (3) the development of computer-based tools to deliver detailed medical protocols; and (4) various applications of data mining to assist in developing innovative medical software. His previous experience includes the development of components for two medical information systems. Recently, his efforts have focused on constructing environments to support applied informatics research and to support the evaluation of innovative tools for implementing decision support in active clinical settings. His research interests include using natural language processing to extract clinical information from medical documents, sharable approaches to representing decision support logic, mathematical models of disease capable of informing clinical care, uses of ontologies in research and care, and secondary uses of data collected in the course of care. In addition, he is actively involved in efforts to standardize key elements necessary to simplify the development and sharing of tools for computerized clinical decision support. In this capacity, he contributes to standards development efforts within Health Level 7 (HL7) and the Object Management Group (OMG).