Add to ORKGVery often scientists are faced with the task of locating appropriate solution soft. ware for their problems and then selecting from among many alternatives. We have previously proposed an approach for dealing with this task by processing per-formance data of the targeted software. This approach has been tested using a customized implementation referred to as PYTHIA. This experience made us real-ize the high level of complexity involved in the algorithmic discovery of knowledge from performance data and the management of these data together with the dis-covered knowledge. To address this issue, we present in this paper PYTHIA-II-a modular framework and system which combines a general J..71owledge discovery in databa.ses (KDD) methodology an...