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finance · data-standardization · erd

Financial Data Standardization ERD

Type Entity-Relationship Diagram (ERD)Standard Chen 1976 / Everest 1976 (crow's foot)Engine schematex-erdUpdated 6/17/2026
Financial Data Standardization ERD
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The scenario

A financial services firm needs to standardize data models across trading systems, centralizing instruments, market data, trades, and counterparty info to ensure regulatory compliance and consistent reporting.

What is in this drawing

Read the decisions behind it.

01

Use LEI code as unique identifier for counterparties

02

Separate buyer and seller accounts via foreign keys from Trade table

03

Store market data with timestamps for historical analysis

When integrating multiple trading systems or building a data warehouse for financial analysis.

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