Leap SE is an advanced requirements engineering CASE tool that produces object-oriented models directly from a system requirements repository or specification (SRS). By translating English into logical models for software development, Leap SE achieves RAD from the source, dramatically shortening the systems analysis phase of software projects. Project managers can reduce their systems engineering staffing needs with Leap SE, while promoting the development of quality requirements. Twenty-two templates and a Requirement Builder are provided for fast and flexible composition. Every time a new requirement is saved, Leap SE's object model database is updated to reflect the new entities, relationships, attributes and methods. From this database, a directory of header files can be generated at any time to give software engineering a much-needed head start on design. Moreover, it's just one small step to importing these header files into a reverse-engineering CASE tool to quickly produce a host of class diagrams. Leap SE is fully integrated with MS Access. Data model output, in the form of SQL, can be run in the RDBMS to produce entity-relationship diagrams, tables, and relationships complete with referential integrity.