Model 2 represents the second rationale that the theories provide:
Resource complementarity is based on how resources are utilized and
deployed; complementaries arise when resources are used in a mutually
reinforcing manner [63]. RBV and microeconomic theory argue
that complementarily deploying and utilizing resources is a firmspecific
capability. Model 2 assesses complementarity by measuring
how ERP and e-business technologies are integrated and utilized at
two levels (Fig. 3). The first level measures how the two technologies
are integrated at the information system level. The second measures
how the integrated ERP and e-business system is utilized at the business
process coordination level (left-most bubbles in Fig. 3).