Gordon A. Fenton, PhD, PEng, is a Professor in the Department of Engineering Mathematics at Dalhousie University, Halifax, Nova Scotia. He is a core member and past chair of the American Society of Civil Engineers Geo-Institute Risk Assessment and Management Committee. He is also a core member, past acting chair, and secretary of the International Society of Soil Mechanics and Geotechnical Engineering Risk Assessment and Management Committee. Finally, he serves on the Canadian Highway Bridge Design Code Foundations Committee and is currently developing reliability-based geotechnical design provisions for the next edition of that code.

D. V. Griffiths, PhD, DSc, PE, is Professor of Civil Engineering at the Colorado School of Mines. He is a Fellow and Governor of the American Society of Civil Engineers and a member of the British Institution of Civil Engineers. He is the coauthor (with I.M. Smith) of two successful texts, Programming the Finite Element Method, Fourth Edition (Wiley) and Numerical Methods for Engineers, Second Edition.