King (1995) discussed that strategic capability architecture (SCA) is the fundamental basis for sustainable
competitive advantage of a company. In his discussion, SCA is a basic plan of organizational capability
that is continuously improving and flexible. Consequently, by the application of RBV in IS management,
the notion of IS capabilities emerges that considers developing and leveraging business value through IS.
As Peppard and Ward have proposed, this can be assumed as the fourth era in IS management field.
The IS management era has been faced with several changes from 1960 to 2002. According to the
model that Ward and Griffith (1996) have developed, there were three different, albeit overlapping, IS
management eras. Table 1 depicts a model of four eras of IS evolution.