The core concept of disruptive innovation is using a simpler, lower-cost method to first serve customer segments overlooked by the existing market, then gradually move toward the mainstream market. For SMEs, one of the most direct applications of this logic is 'small-scale market testing': instead of betting everything on a new market or product at once, first select a small target customer group or region, use the fastest method to verify whether demand actually exists, adjust based on feedback, then scale up investment. The article also mentions data-driven optimization—this means each test should leave behind analyzable records rather than relying solely on business staff's subjective impressions. SMEs have the advantage of shorter decision chains and faster response times, which are natural conditions for executing this kind of testing strategy.