The Arthur D. Little approach to defining technology strategy involves four phases: intelligence, trek, vision, and implementation. The intelligence phase involves identifying and assessing relevant technologies, while the trek phase elaborates on which technologies the company needs to gain competitive advantages. The vision phase involves building a long-term technology strategy, and the implementation phase involves executing the strategy and continuously monitoring its effectiveness. Overall, a well-defined technology strategy is essential for companies to succeed in an environment of volatile market requirements and increasing competition.