SOLID Data refers to data that is designed and governed to be Structured, Open, Linked, Interoperable, and Durable.

• Structured - Data is organized using standardized, machine-readable formats and schemas that allow consistent interpretation, validation, comparison, and automated processing across systems.
• Open - Data is accessible under open licensing or governance models that enable broad reuse, transparency, and innovation while respecting appropriate privacy and security considerations.
• Linked - Data is connected through persistent identifiers and semantic relationships, enabling meaningful discovery and integration across datasets (e.g., linking credentials to skills frameworks, jobs, or education pathways).
• Interoperable - Data follows shared technical and semantic standards so it can be exchanged and used across platforms without extensive customization or proprietary barriers.
• Durable - Data is maintained through persistent identifiers, governance structures, and longterm infrastructure that support stability, referenceability, and trust over time.

The concept is increasingly used in education, workforce, and credentialing environments to describe data that supports scalable interoperability and transparent information infrastructures. By adhering to shared technical and semantic standards, SOLID data helps ensure that information can be consistently interpreted by both humans and machines.

The framing of “SOLID data” as an acronym has been promoted in the credential transparency and workforce data ecosystem, particularly by organizations such as Credential Engine, to describe principles for building scalable public data infrastructure.

By contrast, Solid (Social Linked Data), often written without capitalization as an acronym, refers to a web architecture framework designed to give individuals greater control over their personal data through decentralized storage and standardized access protocols. Its primary concern is personal data sovereignty and web infrastructure design rather than public credential registries or workforce data systems.

While related conceptually through shared foundations in linked data and interoperability, the two uses of “SOLID/Solid” represent distinct applications.