validated systems

Validated systems are computerized or automated systems that have been formally assessed and documented to show they consistently perform as intended for a specific use, under defined conditions, in a regulated process or environment.

What a validated system includes

In manufacturing and other regulated industries, a validated system commonly refers to software and related hardware that support activities such as production, quality, laboratory, logistics, or information security, where regulators or internal policies require formal verification of performance. Examples include:

• Manufacturing Execution Systems (MES) controlling batch records and electronic signatures
• Laboratory Information Management Systems (LIMS) used for release testing
• Equipment control systems (e.g., PLC/SCADA) that directly affect product quality attributes
• Quality management or document control systems that store controlled records
• IT/OT infrastructure components that are part of a validated process flow (for example, servers hosting validated applications)

Validation generally involves activities such as defining intended use, requirements and risk assessments; verifying configuration and functionality; testing in a controlled manner; and maintaining documented evidence that the system remains in a validated state over its life cycle.

Where validated systems are used

Validated systems are most often referenced in contexts where regulations, standards, or internal governance expect documented control of computerised systems, such as:

• Pharmaceutical, biotech, and medical device manufacturing
• Food and beverage, cosmetics, and other regulated consumer products
• Highly controlled aerospace and defense processes
• Information security environments where certain tools must be formally qualified for use

On the shop floor, this may appear as validated electronic batch records, validated recipe management, or validated data collection for quality decisions. In IT and OT, it may involve validated configurations, change control, and documented testing before placing a system into production.

What validated systems are not

The term does not mean:

• A system that is inherently compliant without ongoing controls
• A one-time acceptance test without life cycle maintenance (such as periodic review and re-validation after significant changes)
• Every IT or OT system in an organization; only those in scope of validation requirements

Operational considerations

In day-to-day operations, validated systems typically require:

• Documented requirements and intended use
• Controlled configuration and change management
• Formal testing and approval before changes go live
• Audit trails, access control, and data integrity safeguards where relevant
• Procedures for incident handling, backup, and disaster recovery consistent with the validated state

In brownfield manufacturing environments, validated systems often coexist with legacy or non-validated systems. Integration, upgrades, and security measures must be planned so that the validated state is preserved or appropriately re-established.

Common confusion

• Validated system vs. qualified system: “Qualification” often refers to equipment or infrastructure (for example, installation qualification or operational qualification), while “validation” focuses on the overall fitness for intended use of the computerised system in the process. In practice, the terms are sometimes used together or inconsistently.
• Validated system vs. secure system: A system can be validated for a given use but still require additional cybersecurity controls. Validation and information security are related but distinct disciplines.
• Validated system vs. compliant system: Validation provides evidence about performance for intended use. It does not by itself guarantee ongoing compliance, which also depends on procedures, governance, and how the system is actually operated.

Relation to information security frameworks

In environments using frameworks such as ISO 27001 for information security management, validated systems may be listed as controlled assets within the scope of the ISMS. Policies, standards, and procedures typically need to recognize that some applications and tools are validated, and that changes, access controls, and evidence management must be handled in a way that preserves their validated status while also meeting information security requirements.