▁application ▁called ▁the ▁Change ▁Management ▁Server ▁( CM ▁Server ), ▁which ▁served ▁Clear Case ▁clients ▁via ▁the ▁HTTP ▁Pro tocol . ▁( Before ▁version ▁ 7 ▁there ▁was ▁a ▁web ▁service ▁by ▁which ▁users ▁could ▁access ▁Clear Case ▁via ▁their ▁browsers .) ▁C M ▁server ▁has ▁since ▁been ▁replaced ▁by ▁the ▁Clear Case ▁Rem ote ▁Client ▁W ide - Area ▁Network ▁Server ▁( CC RC ▁W AN ▁server ), ▁which ▁continues ▁to ▁be ▁based ▁on ▁Web s phere ▁Application ▁Server . ▁ ▁View s ▁▁ ▁A ▁distingu ishing ▁feature ▁of ▁Clear Case ▁is ▁the ▁Multi Version ▁File ▁System ▁( M V FS ), ▁a ▁propriet ary ▁network ed ▁filesystem ▁which ▁can ▁ ▁mount ▁V OB s ▁as ▁a ▁virtual ▁file ▁system ▁through ▁a ▁dynamic ▁view , ▁selecting ▁a ▁consistent ▁set ▁of ▁versions ▁and ▁en abling ▁the ▁production ▁of ▁derived ▁objects . ▁This ▁was ▁a ▁departure ▁from ▁the ▁repository - and - s andbox ▁model ▁because ▁it ▁enabled ▁the ▁early ▁management ▁of ▁artifact s ▁( that ▁is , ▁before ▁they ▁are ▁checked ▁in ) ▁and ▁was ▁not ▁limited ▁to ▁the ▁management ▁of ▁these ▁first - order ▁configuration ▁items . ▁ ▁Clear Case ▁also ▁supports ▁snapshot ▁views , ▁which ▁are ▁copies ▁of ▁repository ▁data . ▁As ▁opposed ▁to ▁dynamic ▁views , ▁snapshot ▁views ▁are ▁maintained ▁on ▁a ▁local ▁( OS - specific ) ▁file ▁system ▁and ▁do ▁not ▁require ▁network ▁access . ▁Instead , ▁a ▁snapshot ▁view ▁stores ▁a ▁copy ▁of ▁the ▁V OB ▁data ▁locally ▁on ▁the ▁user ' s ▁computer . ▁S napshot