Hi Cyrille, I noticed a recent commit in Arki-Reporter. It would be nice to get your efforts in this repository, but in this case, the commit is wrong: 1. you removed REPConcernSpecification class>>open (is this by any chance due to the overriding problem?) 2. you removed the error checking of the result computation which can easily break the whole report Could you please take a look? Cheers, Doru -- www.tudorgirba.com "Yesterday is a fact. Tomorrow is a possibility. Today is a challenge."