مؤلف: Walter E. Hanson

David A. Walker has been working in the risk management, process safety, loss prevention, incident investigation/root cause analysis, system reliability, and asset integrity management fields for more than 20 years. He is Vice President of Public Sector for ABS Consulting. He is also an instructor for (1) ABS Consulting Training Services, (2) professional societies such as the American Society of Mechanical Engineers and the American Institute of Chemical Engineers Center for Chemical Process Safety, and (3) specialized centers at universities.