Carolyn Green is studying the use of information by regional health authorities in public health policy decisions. Health authorities need high quality information to assess the health care needs of communities and appraise the performance of health care systems. But while health authorities make system-wide decisions that can affect whole populations, authority board members do not rate the information they receive as being adequate or timely. Carolyn is investigating what kinds of information are needed and which technologies can best deliver the information to authorities. Her research will help improve the quality of information available to health authorities for evaluating and making decisions about the health care system.