Skip to content

Self-Checkout — Customer-Operated Store Checkout

customer action transactional

Outcome

A customer can scan, bag, and pay for items independently at a self-service terminal without associate assistance.

Service Flow

flowchart LR
    S0["Add Basket Item"]
    S1["Apply Promotions"]
    S0 --> S1
    S2["Authorize Payment"]
    S1 --> S2
    S3["Create Order"]
    S2 --> S3
    S4["Capture Payment"]
    S3 --> S4

Capabilities

Basket Management Catalogue Management Inventory Reservation Payment Processing Checkout Automated Item Identification Loss Prevention

Domains

commerce order inventory payment store

Business Objects

Object Classification Domain
basket aggregate-root commerce
product entity commerce
channel entity commerce
order aggregate-root order
payment aggregate-root payment
terminal entity store

Business Services

  • add-basket-item
  • apply-promotions
  • authorize-payment
  • create-order
  • capture-payment

Applications

Application Classification
POS pos system-of-engagement
Payment Hub payment-hub platform
Inventory Service inventory-service system-of-intelligence
Promotion Engine promotion-engine system-of-intelligence
Loss Prevention Service loss-prevention-service system-of-intelligence
Event Classification Object Terminal
BasketCreated created basket —
BasketUpdated updated basket —
BasketCalculated calculated basket —
BasketCheckedOut transitioned basket ✓
BasketCheckoutStarted transitioned basket —
BasketAbandoned transitioned basket ✓
BasketMerged transitioned basket ✓
InventoryReserved created reservation —
ReservationConfirmed transitioned reservation —
InventoryReleased transitioned reservation —
ReservationExpired transitioned reservation ✓
PaymentAuthorized transitioned payment —
PaymentCaptured transitioned payment —
PaymentVoided transitioned payment ✓
PaymentRefunded transitioned payment —
PaymentSettled transitioned payment ✓
ProductCreated created product —
ProductActivated transitioned product —
ProductUpdated updated product —
ProductDeactivated transitioned product ✓
CataloguePublished transitioned catalogue —
CatalogueUpdated updated catalogue —
CatalogueArchived transitioned catalogue ✓
ReservationCreated created reservation —
ReservationReleased transitioned reservation —
ProductSearchPerformed updated product —
CatalogueSubmitted updated catalogue —
CatalogueApproved updated catalogue —
CatalogueRejected updated catalogue —
CataloguePublished transitioned catalogue —
CatalogueUnpublished transitioned catalogue —
CatalogueArchived transitioned catalogue —
CatalogueRetired transitioned catalogue —
GiftCardActivated transitioned gift-card —
GiftCardRedeemed updated gift-card —
GiftCardToppedUp updated gift-card —
GiftCardExpired transitioned gift-card —
GiftCardCancelled transitioned gift-card —
GiftCardRefunded transitioned gift-card —
RefundProcessed updated refund —
RefundFailed transitioned refund —
RefundConvertedToCredit transitioned refund —
CheckoutStarted transitioned basket —
CheckoutCancelled transitioned basket —
BasketLineAdded created basket-line —
ItemIdentified updated inventory —
ItemIdentificationAnomalyDetected created loss-prevention-case —
TransactionAnomalyDetected created loss-prevention-case —
LossPreventionCaseOpened transitioned loss-prevention-case —
LossPreventionCaseResolved transitioned loss-prevention-case ✓
Endpoint Method Service Description
/inventory/reservations POST reserve-inventory Creates a timed Reservation for one or more SKUs at a s…
/inventory/reservations/{id}/confirm POST confirm-reservation Confirms a Reservation, converting it to a firm commitm…
/inventory/reservations/{id} DELETE release-reservation Releases an existing Reservation, returning the quantit…
/payments/authorizations POST authorize-payment Submits a payment authorisation request for the order t…
/payments/authorizations/{id}/capture POST capture-payment Captures a previously authorised Payment. Requires paym…
/payments/authorizations/{id}/void POST void-payment Voids a payment authorisation that has not yet been cap…
/payments/{id}/refunds POST refund-payment Initiates a full or partial refund against a captured p…
/transactions POST checkout-basket Opens a new POS transaction, initialising the basket fo…
/transactions/{id}/payment POST authorize-payment Adds a payment tender to an in-progress POS transaction…
/transactions/{id}/void POST cancel-order Voids an in-progress POS transaction before payment com…
/baskets POST create-basket Creates a new digital basket for an anonymous or authen…
/baskets/{id}/lines POST add-basket-item Adds a product line to an existing basket, validating a…
/baskets/{id}/checkout POST checkout-basket Converts a validated basket into an order, triggering p…
/products/{id} GET publish-catalogue Retrieves the full product detail including attributes,…

Validation Rules

Rule Type Severity Condition
self-checkout-requires-active-terminal pre-condition invariant terminal.lifecycle = active AND terminal.type = self-ch…

← Back to Process Catalog