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Copper Lane Payments Read-only example
Process

Payment service

Owns logical operations and recorded state

Data it owns

Databases it holds

It holds no database.

Data it reads and writes

  • Order reference read in Resolve one payment without inventing its outcome
  • Payment written in Resolve one payment without inventing its outcome
  • Payment read in Resolve one payment without inventing its outcome
  • Payment read in Resolve one payment without inventing its outcome
  • Payment read in Resolve one payment without inventing its outcome
  • Payment written in Resolve one payment without inventing its outcome
  • Payment read in Resolve one payment without inventing its outcome
  • Payment written in Resolve one payment without inventing its outcome
  • Payment read in Resolve one payment without inventing its outcome
  • Payment written in Resolve one payment without inventing its outcome
  • Processor confirmation written in Resolve one payment without inventing its outcome
  • Payment read in Request and confirm the €100 refund
  • Payment read in Request and confirm the €100 refund
  • Refund read in Request and confirm the €100 refund
  • Refund written in Request and confirm the €100 refund
  • Payment read in Request and confirm the €100 refund
  • Refund read in Request and confirm the €100 refund
  • Refund written in Request and confirm the €100 refund
  • Processor confirmation written in Request and confirm the €100 refund