domain-fintech:financial-data-modeling

Design a multi-currency ledger schema by defining standard account hierarchies and enforcing ISO 4217 currency codes. Use DECIMAL or integer minor units for accurate monetary storage, and implement soft-delete policies to maintain data integrity in your banking application.

Bi-temporal data modeling tracks both event occurrence and system recording times to ensure financial auditability. It enables point-in-time queries and historical reconstruction, allowing you to verify exactly when a transaction happened and when the system processed it.

The best way to store monetary values is using DECIMAL types or integer minor units. This approach prevents floating-point rounding errors, ensures exact decimal precision for financial instruments, and maintains strict accuracy for accounting transactions.

Yes, financial data modeling requires explicit ISO 4217 currency codes for transactions. Enforcing these codes ensures proper multi-currency ledger handling, prevents ambiguity in international banking applications, and supports accurate currency conversion calculations.

Model account hierarchies by defining standard account types including asset, liability, equity, revenue, and expense. Establish clear parent-child relationships within these categories to support complex financial instrument representation and accurate financial reporting.

Yes, you can and should use soft-delete policies in a financial transaction history log. Soft-deletes preserve records by marking them inactive rather than erasing them, which is critical for maintaining bi-temporal auditability and compliance in accounting systems.