Emebere sistemu ihe nrịbama nke mpụta iji nye ihe ngosi anya nke ika gị, ebe ị na-enyere ndị ahịa aka ịnyagharị okporo ụzọ n'ime oghere dịpụrụ adịpụ azụmahịa gị. Ụdị ihe nrịbama a gụnyere akara ngosi High Rise Letter, akara ncheta, akara ihu, ụgbọ ala na ebe a na-adọba ụgbọala.