The model has spawned a range of adaptations that extend the concept or apply it to specific domains of interest. In his book
Crossing the Chasm,
Geoffrey Moore proposes a variation of the original lifecycle. He suggests that for discontinuous innovations, which may result in a
Foster disruption based on an
s-curve, there is a gap or chasm between the first two adopter groups (innovators/early adopters), and the vertical markets. Disruption as it is used today are of the
Clayton M. Christensen variety. These disruptions are not s-curve based. In
educational technology, Lindy McKeown has provided a similar model (a pencil metaphor) describing the
Information and Communications Technology uptake in education. In
medical sociology,
Carl May has proposed
normalization process theory that shows how technologies become embedded and integrated in health care and other kinds of organization. Wenger, White and Smith, in their book
Digital habitats: Stewarding technology for communities, talk of technology stewards: people with sufficient understanding of the technology available and the technological needs of a community to steward the community through the technology adoption process. Rayna and Striukova (2009) propose that the choice of initial market segment has crucial importance for crossing the chasm, as adoption in this segment can lead to a cascade of adoption in the other segments. This initial market segment has, at the same time, to contain a large proportion of visionaries, to be small enough for adoption to be observed from within the segment and from other segment and be sufficiently connected with other segments. If this is the case, the adoption in the first segment will progressively cascade into the adjacent segments, thereby triggering the adoption by the mass-market. Stephen L. Parente (1995) implemented a
Markov Chain to model economic growth across different countries given different technological barriers. In
Product marketing, Warren Schirtzinger proposed an expansion of the original lifecycle (the Customer Alignment Lifecycle) which describes the configuration of five different business disciplines that follow the sequence of technology adoption. ==Examples==