I am describing a business model of doing a lot of buying and selling in very small quantity.
Retailing is not the right word. In my case the small buying and purchasing is not due to demand being small, like retail, but that demand is unknown.
It's like if you supply a hungry man who cannot speak (or an animal), you can only supply bit by bit, until he refuses to eat more. It is not retailing, it is the only way to satisfy unkown demand without oversupplying, especially if the over-supplied part is expensive to return to storage, and repeated supply is, seeming onerous, actually cheap to achieve -- seemingly impossible but it works in the Internet era when the supplier is a software program.
How can I name this market behaviour or business model? A phrase less than 4 words should be idea. The concept is only debated a dozen times in the project, so it doesn't have to be squeezed down to a single word. I thought of "food-pecking", like a chicken pecks food little by little. Any more ideas?