Since only limited empirical research on supply chain PM and implementing ERP
systems was found, an explorative approach to generate tentative patterns and
illustrations was chosen. In early stages of emerging topics, a case study approach
could be appropriate (Yin, 2003). Case studies can be of different types (Yin, 2003). One
type would be by studying some cases, to want to make a statistical generalization in
order to show some general conclusions. Another type would be to study cases in order
to learn something from those particular cases. Such results could be analytically