Financial Crime

Entities

Merchant

A Merchant is a Party Role that accepts payments for goods or services through institution channels.

---
config:
  layout: elk
---
classDiagram
  class Merchant{
    * Merchant Identifier : string
    Merchant Category Code : string
    Settlement Account Identifier : string
  }

  Merchant --|> PartyRole
  Merchant "1" --> "0..*" Transaction : processes
  Merchant "0..*" --> "0..1" Account : settles into

  class PartyRole["<a href='https://github.com/Semprini/md-ddl/blob/main/examples/Financial%20Crime/entities/party_role.md'>Party Role</a>"]
  class Transaction["<a href='https://github.com/Semprini/md-ddl/blob/main/examples/Financial%20Crime/entities/transaction.md'>Transaction</a>"]
  class Account["<a href='https://github.com/Semprini/md-ddl/blob/main/examples/Financial%20Crime/entities/account.md'>Account</a>"]

extends: Party Role
existence: independent
mutability: slowly_changing
attributes:
  Merchant Identifier:
    type: string
    identifier: primary
    description: Unique identifier for the merchant role instance.

  Merchant Category Code:
    type: string
    description: >
      ISO 18245 Merchant Category Code (MCC) representing the merchant's primary
      business type. Used in transaction monitoring rule segmentation — certain MCCs
      (e.g., cash-intensive businesses, money services) attract heightened scrutiny.

  Settlement Account Identifier:
    type: string
    description: Account identifier used for merchant settlement.

governance:
  retention_basis: Inherited from domain default retention of 10 years post relationship end for AML/CTF record-keeping

Relationships

Merchant Receives Payment

A Merchant receives funds through one or more Transactions.

source: Merchant
type: associates_with
target: Transaction
cardinality: one-to-many
granularity: atomic
ownership: Merchant

Merchant Has Settlement Account

A Merchant may have a designated Account into which settlement funds are credited by the institution.

source: Merchant
type: references
target: Account
cardinality: many-to-one
granularity: atomic
ownership: Merchant

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