Customers are considering open storeroom management for multiple reasons, from costs saving, to improved service. 

By allowing self-service picking, you improve efficiency and productively, by not having someone waiting all the time, either the storeroom clerk waiting for a technical to request something, or the technical waiting for the showroom clerk to get it, also, you can locate more satellite storerooms closer to job sites. 

This presentation discusses a very successful deployment of a self-service kiosk at a steel mill in Ohio