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.
Many of the benefits of cinnamon bark oil have to do with its ability to dilate blood vessels. Cinnamon bark can help enhance nitric oxide function, which causes increased blood flow and lower levels of inflammation. Some of the most researched health benefits of cinnamon oil include: Decreases inflammation.