An ERD (Entity Relationship Diagram) is a graphical representation of the data in rest within a system (e.g. a business, an organization, an application) that is subject to analysis.
1. REFERENCE DOSE (RfD): DESCRIPTION AND USE IN HEALTH RISK ASSESSMENTS. 1.1. INTRODUCTION. This concept paper describes the U.S. Environmental Protection Agency's (U.S. EPA) principal approach to and rationale for assessing risk for health effects other than cancer and gene mutations from chronic chemical exposure.
request for information (RFI) Definition. A formal request for preliminary information for the purpose of evaluating potential bids for design services, construction services, or both. This request does not usually signify a firm commitment by an owner, but it provides information on potential bidders and their capabilities.