Architecture pillar

Offer & Order Migration Architecture

A practical architecture map for moving from PNR, ticket and EMD-centric operations to order-native retailing while legacy PSS, DCS, settlement, and interline processes continue to run.

Shadow PNR

Maintain a lightweight PNR for host and airport interoperability while the commercial source of truth moves toward the order.

Ticket envelope

Issue tickets or EMDs only where settlement, interline, or partner processes still require them, mapping every document back to the order item.

Order timeline

Append change, refund, fulfilment, and payment events to the order rather than losing context across fragmented documents.

Critical migration articles to build next

How shadow PNRs should work during Offer and Order migration.
Mapping EMDs to order items without breaking ancillary fulfilment.
Why ticket coupon logic becomes a constraint in order-based servicing.