The Beginning Educator Support and Training (BEST) Program (a performance-based assessment program) was developed to enable the Connecticut State Department of Education to implement legislation requiring beginning teachers to achieve a satisfactory evaluation on a professional knowledge clinical assessment during their initial year of teaching. The management system for the BEST program is an example of a response to the new data collection and generating demands of professional assessment. The yearly cycle of the BEST program is supported by a database management system that provides for data storage, scoring, and reporting. In the most recent implementation year, data was received, scored, and processed for more than 650 assessors, 900 beginning teachers, and 3,000 assessments. A description of the relational database for the program offers practical examples for management of a performance-based assessment program. Three figures illustrate the assessment model. Appendixes include a score sheet, letters for the score report and assessment completion, a ratings form, and a sample assessment report. (SLD)