What self-checkout kiosks are for
Self-checkout kiosks let shoppers scan and pay for their own shopping, without an operator at every till, which suits a supermarket or a shop where many shoppers buy a few items and want to leave quickly, and where staffed tills would cost more in labour than self-checkout costs in equipment. A kiosk is a standalone unit for self-service, combining a screen, a scanner, a printer, and payment in a form the shopper can use without training, with clear prompts at each step, so a first-time user can complete a sale without help in most cases.
Self-checkout suits small baskets better than large ones: a shopper with a few items finishes quickly, while a shopper with a trolley full of items may take longer than at a staffed till, and may need help with age-restricted items, loose produce, or items without barcodes. A shop that plans self-checkout should plan for both: self-checkout for small baskets, staffed tills for large ones, and an attendant for both, because a shop that replaces all staffed tills with self-checkout will strand its large-basket shoppers.
How many kiosks, and how many attendants
The number of kiosks should be planned from the shop's peak traffic, not from its average, because a kiosk installation that copes on an average day will queue on a busy day, and a queue at self-checkout defeats its purpose, which is to let shoppers leave quickly. Count the shoppers at peak, estimate their basket sizes, and allow one kiosk per small-basket shopper flow, with staffed tills retained for large baskets, so the peak is served without a queue at either.
The number of attendants should be planned from the kiosks, not from the staff roster: one attendant can watch several kiosks and step in when a shopper needs help, but an attendant who watches too many will be slow to reach a shopper who is stuck, and a stuck shopper blocks a kiosk until help arrives. A common plan is one attendant per four to six kiosks, adjusted for the shop's shoppers: more attendants where shoppers are less familiar with self-checkout, fewer where they are experienced.
Layout: entry, flow, and exit
Layout should let shoppers enter, shop, and leave without confusion: a clear entry to the kiosk area, a clear flow from scanning to payment to exit, and a clear exit that does not cross the entry flow, because a layout where entering and leaving shoppers cross will jam, and a jammed self-checkout area will slow even shoppers who know what they are doing. The kiosk area should be visible from the shop floor, so shoppers can see it and join it, and it should be near the exit, so shoppers who have finished can leave without retracing their steps through the shop.
Layout should also allow the attendant to see all kiosks at once, because an attendant who cannot see a stuck shopper cannot help them quickly, and a kiosk that is hidden behind a pillar or a display will wait longer for help than one in plain sight. The attendant station should be central, with a clear view of every kiosk, and with a path to each that is not blocked by queues or displays.
Exceptions: the plan that makes self-checkout work
Exceptions are where self-checkout fails if they are not planned for: age-restricted items that need an attendant's approval, items without barcodes that need a code entered, loose produce that needs weighing, payment failures that need a retry or a different payment, and shoppers who need help with the kiosk itself. Each exception needs a plan: who approves, how the code is entered, where the scales are, how payment is retried, and how help is summoned, because an exception without a plan blocks a kiosk until someone improvises one, and improvisation during a busy period is slow and error-prone.
A buyer who plans self-checkout should list the exceptions their shop actually faces, not just the obvious ones, because a shop that sells alcohol, tobacco, or medicines will face age checks daily, while a shop that sells loose produce will face weighing daily, and a shop that takes many card payments will face payment failures regularly. Each exception that is planned for is a blockage avoided, and each that is not planned for is a blockage waiting to happen.
Choosing the kiosk form
The kiosk form should fit its use: a floor-standing kiosk for a supermarket self-checkout area, a counter kiosk for a smaller shop, and a wall-mounted or compact form where space is tight, because a form that does not fit its place will either dominate it or be too small to use comfortably. The form's screen size, scanner position, printer position, and payment position should all suit a shopper standing at it, not just an operator, because the shopper is the user, and a kiosk designed for an operator will confuse a shopper.
A buyer who chooses a kiosk form should test it with real shoppers, not just with staff, because staff know the system and will use it smoothly, while shoppers who are new to it will hesitate, misread prompts, or press the wrong button, and a form that confuses new shoppers will need more attendant help, defeating its purpose. A test with a dozen real shoppers will reveal problems that a staff test will not, and it costs little compared with a fleet of kiosks that confuse shoppers daily.
Trade terms: confirm per model
Trade terms for kiosks are confirmed per model, not as a site-wide rule, because minimum order, supply ability and stock time differ by model across the official detail pages. A buyer who assumes the majority term applies to every model will be wrong for the minority models, and a buyer who orders a model whose minimum is higher than assumed will find the order cannot proceed as written, while a buyer who assumes a stock time is a delivery time will expect a delivery that cannot happen.
Read the model's page for its own terms, and confirm them in the inquiry, naming the model, the quantity, and the market, before payment. The minimum order and lead time inquiry pages explain the distributions in full, and the wholesale inquiry page explains how to write a bulk inquiry that covers every model in the order.
Common planning mistakes
A common mistake is planning kiosks from average traffic rather than peak traffic, and discovering a queue on the first busy day. Another is planning too few attendants, and discovering stuck shoppers wait too long for help. A third is planning no exception handling, and discovering the first age-restricted item blocks a kiosk until an attendant improvises a solution. A fourth is choosing a form without testing it with real shoppers, and discovering it confuses them daily. All four are avoided by planning from peak traffic, from attendant ratios, from exceptions, and from real-shopper testing, before ordering.
A planning mistake costs more than a kiosk's price, because it affects every shopper at every kiosk, and it may require re-layout, more attendants, or replacement kiosks, all of which cost more after installation than before. The planning described here takes time, but it costs far less than correcting a live installation that shoppers already dislike.
Before you order kiosks
Name the model, the form, the quantities, and the market you sell into, in the inquiry. Ask for the specification for the exact model, the minimum order quantity, the lead time with its meaning, the warranty terms, the payment and shipping terms, and the certificates that apply to your market, by name, with documents attached. Do not pay before these have been confirmed for the exact models in the order.
A kiosk installation is only as good as its planning, and the planning is only as good as the confirmation. The self-checkout guide page explains self-checkout in the same terms, and the model pages give the per-model descriptions, so a buyer who follows both will rarely be surprised.
A note on sources and confirmation
The model specifications and trade terms referred to in this article come from the company profile's official product pages, as presented on this site's model and category pages. Trade terms are stated per model only: minimum order, supply ability and stock time differ by model across the official detail pages, and delivery EXW, though stated on all 101 pages, is still written per model rather than as a blanket promise, and stock time is not delivery time.
Figures that are not stated on a model page — a price, a payment, shipping or warranty term, or a certificate for a specific model and market — are confirmed per order in the inquiry, and this article does not invent them. Official list prices that appear on the official detail pages are transcription only and are never a quotation, and no certificate name, number, or issuer is stated anywhere on this site, because none are evidenced; certificates are available upon request.
Before ordering, name the model, the variants, the quantities, and the market you sell into, in the inquiry. Ask for the specification for the exact model, the minimum order quantity, the lead time with its meaning, the payment and shipping terms, the warranty terms, and the certificates that apply to your market, by name, with documents attached. Do not pay before these have been confirmed for the exact models in the order, because payment removes the leverage to resolve an unconfirmed item, and a confirmed order is the only basis for a safe purchase.