ͽ | ͽ
ֱ Ȱ ϰ ִ. Ư ̵(Mobility), ġȮ(Location), ȭ(Personalization), ü(Timeliness) Ͻ ״ Ȱ ֱ ̴. ̷ Ư ʵ 캸 ϱ 2 Ʈ .
Ư Ʈ
ϵ ϴ.