Case research helps investigators develop answers to why
and how questions [62], while typology research can illustrate
the causal relationships in theory building [63]. The capacity of
case research to examine phenomena over time is critical to
studying the process of technological change. Case research
uses the analytical technique of explanation building to verify causal relationships between conditions before and after a
technological change. The visual mapping technique [64] is
adopted to facilitate case analysis by distinguishing real-world
cases into types; explanation building will then be used to
prescribe the ideal types.