[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] validateResource( ) method Value Objects vendor lock-in Version Number pattern 2nd View Helper pattern 2nd view helpers views 2nd 3rd advanced composite [See composite view] Service to Worker pattern visible business tier |