Linked, Open Languages/schemas (CTDL & CTDL-ASN)

Last Updated: 03/10/2024

Relational Map coming soon. Learn more about the work we’re doing with AI and view our example prototypes here.

Overview

Credential Engine’s family of specifications are available for use under open licenses. These specs include the Credential Transparency Description Language (CTDL) used to describe credentials and information about them. This includes organizations offering credentials, the learning opportunities and assessments for earning them, pathways, and outcomes.

The CTDL- Achievement Standards Network (CTDL-ASN) is used to describe competencies, learning standards, and performance and learning objectives. These languages are developed through open processes and are modeled on World Wide Web Consortium standards for the Semantic Web for use on websites, in the Credential Registry, and for web or mobile applications. These practices ensure that information published to the Web or to the Credential Registry is structured as linked, open data that is human-readable and machine-actionable.

Structured data is machine-readable and used by search engines to understand the content of web pages.

Linked data is a type of structured data that links between systems via the Web. When data is both structured and linked, it becomes a powerful tool that search engines and other systems can leverage. Linked Data is at the foundation of the Semantic Web, which (a) makes meaningful links between data points understandable to humans and machines alike; and (b) provides the means for inferring new data from existing data.

Creation and use of these specifications ensure a common language that supports transparency and comparability of information. These specifications can be used by all organizations that offer credentials on their websites and in the Credential Registry. Further, they make it easier for students, businesses, researchers, search engines, and automated systems to discover, understand, and compare information about credentials from a variety of sources.

The CTDL was used to launch a World Wide Web Consortium Community to include credential information with Schema.org. The CTDL is mapped to Schema.org to support search engine crawling. CTDL is openly available through a Creative Commons Attribution 4.0 International License. It is also consistent with certain federal policies and programs on open data and the use of standards, including the Open Data Policy, Office of Management and Budget (OMB) Circulars A-119 and A-130, and the Federal and Defense Standardization Programs.

Credential Engine harmonizes with widely used international standards for the web such as Open Badges. Credential Engine also works in partnership with international standards bodies such as PESC and 1EdTech to improve standards and data interoperability.

Partners

Credential Engine, PESC, 1EdTech,Schema.org

Resources

https://credentialengine.org/

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