Digital transformation refers to the changes associated with the application of digital technology in all aspects of human society.
Digital transformation may be thought as the 3rd stage of embracing digital technologies:
Digital competence → Digital literacy → Digital transformation
The latter stage means that digital usages inherently enable new types of innovation and creativity in a particular domain, rather than simply enhance and support the traditional methods.
In a narrower sense, “digital transformation” may refer to the concept of “going paperless“
Some other definitions:
The realignment of, or new investment in, technology and business models to more effectively engage digital customers at every touchpoint in the customer experience lifecycle. ~ Altimeter
The use of technology to radically improve the performance or reach of enterprises. ~ MITSloan
Digital transformation closes the gap between what digital customers already expect and what analog businesses actually deliver. ~ Verdino & Co