With the elimination of the perpetual license, how much more will Autodesk programs cost you? Owen Wengerd did the research, and found the following ratios: 40% -- Annual subscription becomes more expensive (than perpetual) after 2 years and 5.5 months.
Modern examples of disruptive innovation include the development of mobile cellular telephones, digital cameras and e-book readers. Harvard Business School professor Clayton Christensen is noted for popularizing the term disruptive innovation in his book The Innovator's Dilemma.
A disruptive innovation is an innovation that creates a new market and value network and eventually disrupts an existing market and value network, displacing established market leading firms, products and alliances. The term was defined and phenomenon analyzed by Clayton M. Christensen beginning in 1995.