Relative advantage considers the degree to which
innovation is perceived as being better than its precursor
(Rogers Everett 1995). Lin et al. (2012) in his study of HIS,
emphasized that Health Level Seven (HL7) would simplify
the communication interfaces and allow interoperability
among the heterogeneous healthcare application. According
to Chang et al. (2006), operating costs nowadays become a
big concern due to increasing the competition among
hospitals. Relative advantage refers to checking that the
adoption of HIS can reduce hospital operating costs and
obtain the relative operational benefits for a given hospital.
Innovation diffusion theory suggests that the relative
advantage of an innovation positively influences an
organization‘s propensity to adopt the innovation.