Dr. Oliver Bonten works as a senior consultant in Hewlett–Packard Consulting's XML Competence Centre. He has been involved as a project manager, system architect and, in his younger days, technical consultant in a number of projects to implement Content Management for Technical Information Systems and Legal Publishing. Among his clients are European and Asian car manufacturers, a pharmaceutical company and a legal publisher. His special interests include publishing for print media. He has been working with SGML and later XML since 1993. He holds a Ph. D. in mathematics from RWTH Aachen.