A soft go-live, also know as soft launch, can be a preview release to a limited audience prior to the general user base, for example if you're rolling out Ivanti Asset Manager, with Asset Scanning, Procurement workflows for Purchase Orders, Product Catalog for Hardware and Software, Storage Locations to manage consumables and Packing Slip scanning, there are bound to be some new procedures that need to be tested in the real world. With real live situations.
ITSM/ITAM/ESM Blog 