Microsoft Chain Store Solutions Overview:

Microsoft RMS provides fully-featured solutions for retail businesses. Store Operations and Headquarters modules provide full integration of all retail levels, from the point of sale upwards.
Microsoft Retail Management System HeadQuarters allows retailers with a chain of stores to centralize control of their Store Operations databases and reporting.
Microsoft Retail Management System Store Operations can run at just one store or at multiple stores. Store Operations is designed to scale should your retail operation begin to grow into multiple locations.