Kernel [5(F)->(F)4:3(R)->(F)2]   | MailMan [3(F)->(F)1:2(R)->(F)2]   | Registration [2(F)->(F)1:1(R)->(F)1]   | Prosthetics [1(F)->(F)2]   |
action | A | extended action | Ea | event driver | Ed | subscriber | Su | protocol | O | limited protocol | LP | run routine | RR | broker | B | edit | E | server | Se | P | screenman | SM | inquire | I |