Data Validation – Use Cases¶

When to Reach for This Module¶

Use Data Validation whenever the requirement can be written down. Not "does this look unusual", but:

invoice_amount must be positive. currency_code must be in {EUR, USD}. vat_code must be present.

These are not statistical questions and should not be answered statistically. Data Validation checks every single row against rules you define, and reports exactly which records failed and how many — deterministically, with no assumptions and no learning period.

Rules can be created by technical or business users through the interface, which matters more than it sounds: the person who knows the regulation is usually not the person who writes SQL.

The module works independently of the other modules. A project can run validation alone, or run it alongside AI-based detection.

Finance and Regulatory Reporting¶

Invoice and transaction compliance¶

A typical invoice dataset is validated with a small set of rules:

A run against a real month's data returns not just a pass/fail but the count of non-compliant records and the records themselves — for example, 31 rows failing across the five rules. That list is what gets handed to the process owner; the aggregate number alone is not actionable.

Pre-submission checks before risk reporting¶

A financial services team validates transaction records against business rules before risk reporting is published, rather than discovering the breach in a regulator's response. Because validation results are inspectable and exportable, the same run doubles as the evidence that the check was performed.

Reference data integrity¶

Country codes, currency codes, product codes, counterparty classifications — all natural reference-list rules. A value outside the list is unambiguously wrong, and treating it as an anomaly to be scored would only add doubt.

Healthcare¶

• Mandatory clinical fields — a diagnosis code, an admission date, or a consent flag that must never be null on a submitted record.
• Coded value conformance — procedure and diagnosis columns validated against the official code list in force, so a retired or mistyped code is caught at the row rather than in aggregate.
• Plausibility ranges — dates of birth, admission and discharge ordering, and measurement ranges that must hold for a record to be usable.

Telecommunications¶

• Billing correctness — usage quantities and charged amounts constrained to sensible ranges before an invoice run, since a billing error reaches customers directly.
• Contract and tariff conformance — tariff codes validated against the active catalogue, catching records created against a plan that no longer exists.
• High-volume, distributed sources — where a small change at one source creates widespread downstream errors, explicit rules at the entry point stop the error spreading rather than merely reporting it later.

Public Sector¶

Public sector work typically requires traceability across systems. Data Validation is the module that supplies it directly: every rule run logs its results, including how many records failed and which ones, and all outcomes are inspectable, exportable, and easy to trace.

That makes it suitable for statutory reporting, eligibility and entitlement checks, and any process where "the data was correct" has to be demonstrable months later.

Governing Rules Across Environments¶

From Release 2026.06, validation rules can be imported and exported, which changes how rule sets are managed at scale:

• Promote a rule set from development to test to production without re-entering it.
• Reuse a standard set — mandatory fields, currency and country lists, sign conventions — across projects.
• Keep rule definitions in version control alongside the rest of your configuration.
• Share a curated set between teams so that "compliant" means the same thing in each of them.

See the Release 2026.06 changelog for the details.

Designing a Rule Set That Stays Useful¶

Where This Module Fits¶

Related Pages¶

• Data Validation – Introduction
• Data Validation – How It Works
• digna Modules – Technical Overview
• Changelog – Release 2026.06