Thomson Reuters. Just before it acquired Reuters, global information services giant Thomson Corporation embarked on an extensive research study to better understand its ultimate customers. Thomson sold to businesses and professionals in the financial, legal, tax and accounting, scientific, and health care sectors, but it felt it knew much more about how a financial services manager made purchases for an entire department, for example, than about how individual brokers or investment bankers used Thomson data, research, and other resources to make day-to-day investment decisions for clients. Segmenting the market by these end users, rather than by purchasers, and studying how they viewed Thomson versus competitors allowed the firm to identify market segments that offered growth opportunities. To better understand these segments, Thomson conducted surveys and "day in the life" ethnographic research on how end users did their jobs. Using an approach called "three minutes," researchers combined observation with detailed interviews to understand what end users were doing three minutes before and after they used one of Thomson's products. Insights from the research helped the company develop new products and make acquisitions that led to significantly higher revenue and profits in the year that followed