Proposed requirement: 2.10.4 Constraint Violations Reporting Details

Dear all,

I proposed the following requirement that derived from UC34
https://www.w3.org/2014/data-shapes/wiki/Requirements#Constraint_Violations_Reporting_Details

In large databases (such as DBpedia) there can be many thousands of
violations and getting the detailed nodes that failed is not practical.
In these cases, getting the number of violations per shape / shape facet is
more suited. Most of the times all the violations of a shape facet can be
amended with a single code/mapping fix

In the following example we had ~1M violations related to geo from four
constraints & another ~1M violations for images that both got fixed with a
single commit in the code

http://nl.dbpedia.org/downloads/rdfunit/20141210/
*.aggregated* groups constraints with error counts & prevalence
*.rlog* displays only 10 violation nodes per constraint

-- 
Dimitris Kontokostas
Department of Computer Science, University of Leipzig
Research Group: http://aksw.org
Homepage:http://aksw.org/DimitrisKontokostas