Ibishyimbo bidafunzwe, bikunze kwitwa ibishyimbo byinshi bidafunzwe, ni ibicuruzwa byingenzi mu buhinzi n'ibiribwa. Ibishyimbo, biracyari mumashusho yabyo, itanga inyungu zitandukanye zituma ihitamo rishimishije kubaproducer nabaguzi. Kimwe mubyiza byibanze byibishyimbo byinshi bidafunzwe ni ubuzima bwabo burebure ugereranije nubwoko bwashizwe. Igikonoshwa cyo hanze gikora: