AN OVERVIEW OF THE SYSTEM INCLUDES ITS CONTENTS, SERVICES TO BE RENDERED, PARTICIPANTS, TECHNICAL CHARACTERISTICS OF EQUIPMENT AND SOFTWARE NEEDED, THE WORKLOAD ASSOCIATED WITH THE SYSTEM AT VARIOUS PHASES OF ITS OPERATION, AND THE BENEFITS THAT MAY BE EXPECTED TO BE DERIVED. A DESCRIPTION OF THE PROCESSES, PROCESSING POLICIES AND GUIDELINES, AND FILES AND OUTPUTS INVOLVED FOR EVERY MAJOR INPUT THAT ENTERS THE SYSTEM IS GIVEN.