The conceptual framework: Concepts and classes. DQ Needs concepts: Use Case, Information Element, DQ Dimension, DQ Criterion and DQ Enhancement. DQ Solutions concepts: Specification and Mechanism. DQ Report concepts: Data Source and Assertion (Veiga et al. 2017.)

  Part of: Veiga A, Saraiva A (2017) Toward a Biodiversity Data Fitness for Use Backbone (FFUB): A Node.js module prototype. Proceedings of TDWG 1: e20300.