Traditional GDL vs Emerging SDL
Vargo and Lusch, 2004
SDL has evolved
Vargo and Lusch, 2016
Finding the VRIN Factor
Barney, 1991
DART Model
Pralahad and Ramaswamy, 2004
Customer Engagement Model
Sashi, 2012
Servuction Model
Eiglier and Langeard, 1987