摘要 - Accredited Tier Designer (ATD) 面向专业工程师。课程材料聚焦具体问题，难度适合具有经验的设计专业人士。This course is 3 days of intensive in-person instruction or 5 days of remote-training focusing on materials and concepts of a technical nature. 相关课程跨越传统工程学科的范畴，并以考试形式结束。