. . . . "We use the Test-Driven quality assessment (TDQA) methodology [21] as our main baseline comparison ap- proach to detect incorrect object values and datatypes and literals. TDQA is inspired from test-driven development and proposes a methodology to define (i) au- tomatic, (ii) semi-automatic and (iii) manual test cases based on SPARQL. Automatic test cases are generated based on schema constraints. The methodology suggests the use of semi-automatic schema enrichment that, in turn, will generate more automatic test cases. Manual test cases are written by domain experts and can be based either on a test case pattern library, or written as manual SPARQL queries." . . . . "2019-09-20T18:05:11+01:00"^^ . .