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Data Model & designs

The logical data model first, then each database design with its tables.

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Top level 4 Processor confirmation Order reference Payment Refund Payment state · illustrative PostgreSQL design 4 orders payments confirmations refunds

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Order reference

Order reference

Entity

Order reference

Owned by Payment service

Overview Connections 1 Data 2 Use cases 1 AI context

Payment many_to_one

EntityOrder reference

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Payment many_to_one

Notes

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Illustrative payment system · authored sample knowledge

Could Try again charge twice?

This alternative changes the timeout branch. Compare it with its base, then open the recorded decision explaining why the current design retains the payment.

Keep the reason beside the change it informs.

Follow €100 A missing answer Follow the evidence Understand the change A request is not a result Share the understanding

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Retry change · authored alternative · draft v1 Illustrative payment system · authored sample knowledge Loading… Version v1.22.0

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Map View Document View Mira · customer Actor Merchant support Actor Checkout Process Confirmation handler Component Payment records Data store Payment service Process Fictional processor External system Copper Lane Payments Boundary Pay for the €100 lamp use case Refund the unavailable lamp use case Processor confirmation Entity Order reference Entity Payment Entity Refund Entity Payment state · illustrative PostgreSQL design Database design Open my projects Page

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