Abstract
It is difficult to keep the competitive advantage in digital technology development, because both of digital technology and market requirement change so rapidly. In addition, due to complicated dynamic chain of coevolution between technology and market, crossing over chasms which are big gaps between life stages becomes difficult.
For sustaining competitive advantage during life cycle in the digital technology, it is necessary to grasp critical factors which affect success or failure by life stages of technology life cycle.
As a solution for these issues, this article proposes the two quality management models by case studies of digital camera development and interview study. One quality management model is coevolution between development of digital technology and market, and the other is spiral type model of quality management to keep coevolution of technology and market.
Critical factors in each life stage are also extruded and classified.
These two models of quality management and critical factors are effective for implementation of strategic quality management and evolution of digital technology development and market.
