in order to provide a wider knowledge of the searched topic
(Step 5).
To accomplish this study aims, this research is based on the
examination of various journals, all of which are related to supply
chain management and production planning and control areas.
We use journals because we also believe that journals are the
resources that are most commonly used to acquire information
and report new findings (Ngai et al., 2008).
Journal papers were scattered across a range of journals using
the following electronic databases: