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.
Walnuts. Walnuts are considered a heart-healthy snack that is rich in protein, antioxidants, and omega-3 fatty acids. Many studies have explored the numerous health benefits walnuts have to offer, and the versatility of these tree nuts makes it easy to incorporate them into your diet.) English walnuts, formerly known as Persian walnuts, have a mild, delectable taste that makes them the most widely used variety of walnut. They have a thin, light brown shell that is easy to crack.