Business intelligence information that includes at least one application-level directive associated with a received application-level request is collected at a BI framework situated between a transport adapter layer and a network layer of a computing device. An example scratch test apparatus comprises an arm assembly, and an attached blade moving over the surface during the scratch test. The locking element is mounted on the front cover and has two cams, a torsion spring and a locking block. The engagement end has a non-conductive engagement surface configured to contact the head gimbal assembly on a surface opposite the plurality of circuit pads. In accordance with the invention, the self-cleaning litter box is configured to be used with all types of litter including crystal type litter. The system then constructs a new SVM to replace the current SVM based on the SVMs built for each subset of violating data vectors.