One of the central tenants of Hierarchy is that items and resources only replicate in one direction, either up or down. However, Software Components enter the Hierarchy in two places and need to be replicated throughout the Hierarchy. First, Software Components are created by scanning computers using the Inventory Solution Plugin Agent, which are sent up the hierarchy. Second, Software Components are imported at the root parent NS via the Definitive Software Library, e.g. Patch Management import, Asset Management, Software Management, then sent down the Hierarchy.