| ▲ | adolph a day ago | |
> When on earth did we get into a world where that absolutely fundamental most basic task is now too burdensome to do with accuracy? It always has been this way since barcoded stock keeping units because of the problems identified by CAP Theorem [0]. Since the price data of an object must exist in two locations, shelf and checkout, the data is partitioned. It is also relatively expensive to update the shelf price since it depends on physical changes made by an unreliable human. Even if all stores used electronic price tags there will a very small lag, or a period in which prices are unavailable (or a period of unavailability like an overnight closure). It would be interesting to understand at what point of shelf/checkout accuracy would lead to what increases in overall prices [1]. That is to say that pricing information has a cost: a buyer must bring the item to checkout to find out the true cost in the case of authoritative checkout, or the clerk must walk to each shelf in the case of authoritative shelf. Once upon a time, each item in the store was labeled with a price tag and the clerk typed that tag into a tabulation device in order to calculate tax and total. The advent of the bar code lead to shelf label pricing since the clerk needn't read a price from each item, leading to the CAP Theory problem of today. I suppose that the future will bring back something similar to individual price tags in the form of individual RFID pricing. This way each individual item on a shelf can be priced in a way that is readable by the buyer and the seller in the same manner. | ||