Conducts system analysis (including trade studies) and functional/performance tests pertaining to the development of new designs, methods, materials, equipment or processes and completes required documentation by determining required actions, performing or directing completion of tasks and publishing findings and/or results. Performs requirements development and management, including elicitation, analysis, validation, and communication of customer needs/expectations; decomposes customer requirements into product, component, and interface requirements; establishes and maintains bidirectional traces through requirements changes.