The processing of data in a business application as it happens, as contrasted with storing data for input at a later time (batch processing).

Retailer vs Wholesaler vs Distributor vs Reseller – What’s the Difference?
Starting a new eCommerce business can feel like learning a new language. You’ll quickly encounter terms like retailer, wholesaler, distributor, and reseller. What do they all mean, and how do they differ? In simple terms, these labels describe different roles in the supply chain that gets products from the maker