“…Whether it is due to gaps in the software solutions function or other reasons, organizations provide a fertile ground for system de-Information Technology and Control 2020/1/49 velopment by end users who are not software developers by profession. The following terms are used in the literature for systems developed by end users or used without the knowledge of IT departments: shadow system(s), shadow IT, feral system(s), grey IT, hidden IT, rogue IT, workaround systems, workaround IT, unofficial IT, bolt-on [6,17,28,40,61,62,70,76,81,86,87]. Huber et al [28] state that all these terms are used to describe the shadow system phenomenon.…”