graph TB load(생성) some-state1(( )) some-state2(( )) init(초기화) available(사용 가능 - Servicing Requests) unuvailable(사용 불가능) destroy(파기) unload(제거) %% link load --> some-state1 some-state1 --success--> init some-state1 --failure--> unload init --> some-state2 some-state2 --success--> available some-state2 --failure-->unload available --> unuvailable unuvailable --> available available --destroy request--> destroy destroy --> unload