Abstract: In delivery processes from pharmaceutical wholesaler's sales offices to the client's facilities, which are the target of this case study, an assistance system using handheld devices and paper slips is used. The introduction of AR assistance systems is beginning to be investigated to improve operations in these processes. However, as AR is not yet highly accepted in Japanese industry, a VR environment has been constructed to enable the cycle consisting of prototyping, comparison with existing systems, and sharing the results with stakeholders as efficiently as possible. This paper reports on the VR environment and the preparations for the participant experiments.