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.
Cedarwood essential oil benefits our nonphysical bodies as well. Emotionally, cedarwood is said to have a grounding, calming affect on the nervous system and is thought to have the spiritual affect of bringing people together.opular Uses of Cedarwood Essential Oil. 1  Diffuse after a stressful day to relax the mind and body. 2  Use with a carrier oil in massage therapy. 3  Add 1â2 drops to facial toner or moisturizer for added clarifying properties. 4  Inhale directly or diffuse to promote healthy respiratory function.