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Core Criterion and Core Evidence Vocabulary

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The Core Criterion and Core Evidence Vocabulary (CCCEV) is designed to support the exchange of information between organisations defining criteria and organisations responding to these criteria by means of evidences.


Core Criterion and Core Evidence Vocabulary Version 1.0.0 is now available

Find out more here.


The work for the development of the specification started in February 2016, and lasted until December 2016, when the comments from the public review were addressed. The members of the Working Group met remotely six times.


By using the CCCEV, public organisations have the potential to implement new capabilities in their information systems to:

  • Allow users picking up criteria from common repositories, standardising the criteria used in different sectors and domains.
  • Enable the automatic response to criteria, lowering the language barrier for cross-border processes and exchanges.
  • Automatic assessment through the analysis of criteria and provided evidence.
  • Promote the standardisation of criteria and evidence among attestation and certificate providers, and even across different Member States.
  • Increase the transparency of the assessment and therefore the selection processes, reducing complains and a subjective assessment.

Core Vocabulary is a simplified, reusable and extensible data model that captures the fundamental characteristics of an entity in a context-neutral fashion. Core Vocabularies are the starting point for agreeing on new semantic interoperability assets and defining mappings between existing assets to guarantee a level of cross-domain and cross-border interoperability that can be attained by public administrations.

All the versions of the Core Vocabularies can be downloaded from


Meetings of the CCCEV Working Group

The creation of the CCCEV will be coordinated by an open Working Group, which will meet on a periodic basis. The following meetings have been scheduled:

  • November 28, 2016

Sixth meeting of the working group.

For more information, refer to :

  • June 06, 2016

Fifth meeting of the working group.

For more information, refer to

  • May 20, 2016

Fourth meeting of the working group.

For more information, refer to:

  • April 25, 2016

Third meeting of the working group.

For more information, refer to:

  • March 15, 2016

Second meeting of the working group.
For more information, refer to

  • February 04, 2016

Kick-off meeting of the working group.
For more information, refer to



The list of people that participated in the WG meeting is available here


Working drafts of the CCCEV

Throughout the development process of the CCCEV, several drafts will be prepared by the editors. The drafts will be available for review by the Working Group here. Issues or feedback to this draft can be submitted via the issue tracker or via the public mailing list.

Motivation and use cases

The Core Evidence and Core Criterion Vocabulary (CCCEV) aims to address specific needs of businesses, public administrations and citizens across the European Union, including the following use cases:

Facilitate development of interoperable information systems

The use of common vocabularies to describe criteria and evidence facilitates the development of information systems and improves their interoperability.

Create a repository of reusable criteria in machine-readable formats

The use of common vocabularies promotes the creation of a repository of criteria and evidence information.

Automate the assessment of criteria

The Core Vocabulary describing the criterion responses allows systems to easily compare the information collected from different parties and enables automatic assessment of the responses for a specific criterion.

Automate scoring of responses

Weighting criteria, the assessment can be followed by an automate scoring of the responses provided by different parties.

Promote cross-border participation in public procurement

The use of the Core Vocabulary for electronic criterion and evidence allows for removing language barriers improving the cross border exchange of information, and thus the cross-border participation in pan-European selection processes.

Calculating statistics

Standardising data for criterion, criterion responses and evidences allows calculating statistical information on the most common used criteria for a given process, the most relevant evidences, etc. 

Create a registry of mappings of criteria

Using the Core Vocabulary, it will be possible to create a registry of mappings to allow cross-checking of the criteria with the evidences of each particular member state.