The International Technology Roadmap for Semiconductors (ITRS) is a collaborative effort within the semiconductor industry to confront the challenges implicit in Moore's law. The roadmap's goal is to present an industry-wide consensus on the "best current estimate" of its R&D needs out to a 15-year horizon. As such, the ITRS provides a guide to the efforts of companies, research organizations, and governments to improve the quality of R&D investment decisions made at all levels. The 2001 Roadmap is notable because it was developed with truly international representation. In this article, representatives of the International Technology Working Groups for Design and Test showcase some of the contributions from 839 international experts seeking to address the difficult and exciting challenges facing the design and test communities and the semiconductor industry as a whole.