1 An actor is a person, organization, or external system that plays a role in one or more interactions with your system. 2  Actors are drawn as stick figures. 3  Associations. 4  Associations between actors and use cases are indicated in use case diagrams by solid lines.
Beauty benefits of walnut oil (Thinkstock photos/Getty Images) High in vitamins and proteins, walnut oil works wonders for your skin. Apart from eating walnuts, the use of it in the form of oil also helps your skin. They are known to be rich in fibre, Omega-3, protein and other vital minerals. Fights wrinkles.
The juice of the fruit husk may be applied externally as a treatment for ringworm or applied as a poultice for inflammations. The oil from the ripe nuts is a traditional remedy for gangrene, leprosy, and wounds. Black walnut is believed to be very beneficial as a remedy for poor digestion or diarrhea.