Detailed Work Activity Create models of engineering designs or methods. "Test performance of electrical, electronic, mechanical, or integrated systems or equipment." Design electromechanical equipment or systems. Direct quality control activities. Prepare procedural documents. Direct design or development activities. Evaluate designs or specifications to ensure quality. Inspect equipment or systems. "Investigate system, equipment, or product failures." Determine design criteria or specifications. Analyze design or requirements information for mechanical equipment or systems. Maintain operational records or records systems. Research engineering applications of emerging technologies. Evaluate plans or specifications to determine technological or environmental implications. Design systems to reduce harmful emissions. Research design or application of green technologies.