Definition from Innovation Leader
βA process by which a product or service starts off by doing simple things, inexpensively, for less sophisticated customers. At this stage, it is ignored by incumbents, who are extracting profits from more demanding, sophisticated, and price-insensitive users. But the new product or service relentlessly moves up-market, eventually βdisruptingβ established competitors.β
Going further
I've curated 400+ definitions just like this one in a tiny dictionary. In this glossary you can easily access, search and understand 400+ terms that service designers and other innovators use.