Steve Morlidge sets out to provide a set of guiding principles for the organisational process in forecasting as a complement to Scott Armstrong’s milestone volume, Principles of Forecasting: A Handbook for Researchers and Practitioners. This article is part 1 on the subject and covers the foundation and design principles. Part 2 (Foresight, Fall 2011) covers process, behavioral, and improvement principles. Copyright International Institute of Forecasters, 2011