Design a usable protocol screening database: the user-centered approach.

Patient eligibility screening is a very important component of clinical research. Data obtained from such a task can serve valuable purposes beyond the specific protocol they are generated for and therefore should be captured and stored. We applied a user-centered design framework to evaluate the existing screening process and database at the Neurosurgery Department, M. D. Anderson Cancer Center and to design and develop a usable protocol patient screening interface.