There are several ways in which consumers can receive goods from a retailer.
Counter Service
Where goods are out of reach of buyers and must be obtained from the seller. This type of retail is common for small expensive items (e.g. jewelry) and controlled items like medicine and liquor.
Delivery
Commonly called as Home-Delivery, where goods are shipped directly to consumer’s homes or workplaces
Door-to-door Sales
Where the salesperson travels door-to-door with the goods for sale
Self-Service
Where goods can be handled and examined prior to purchase. E.g. ATMs, Buffet style restaurant, Self service fuel station, Vending machines.
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https://www.vskills.in/certification/certified-multichannel-retail-professional