Max priority : Low level primitives for being able to make whichever thing. ( VFP is incomplete for this ) ... Medium priority : Medium level primitives for RAD ( VFP it has many of these, but they are often not made much good ). ... Min priority : Complex primitives in order to standardize the code. ... Zero priority : Neural nets primitive with automatic genetic synthesis of the complete application.Until Max priority level is incomplete, any medium or max priority primitives it is alone welcome, but not essential.