When measuring outcomes in corporate training, the authors recommend that it is essential to introduce a comprehensive plan, especially when resources are limited and the company needs are vast. The authors hone in on five critical components for shaping a measurement plan to determine the success and ROI of training. The plan's components should provide a roadmap to address complex corporate training environments in which large numbers of courses are delivered to thousands of learners. Recommendations offered apply equally in smaller, less complex organizations. Following a brief historical perspective covering the development of evaluation methods, the authors examine each of their five critical components--strategy, measurement models, resources, measures and cultural readiness. They claim that while their approach applies to all learning methods, it is especially useful in technology-mediated programs, such as self-paced, web-based, online-facilitated, and simulation courses. (Contains 5 tables and 2 figures.)