[A] [B] [C] [D] [E] [F] [G] [I] [J] [L] [M] [O] [P] [Q] [R] [S] [T] [U] [W] [X] abstraction level 2nd 3rd 4th 5th 6th 7th 8th 9th Action Semantics [See AS] Agile Software Development 2nd analysis 2nd AS 2nd 3rd assembler languages association 2nd multiplicity 2nd navigability attribute |