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.
Peppermint oil comprises vitamins A and C, omega-3 fatty acids, and minerals including potassium, manganese, iron, magnesium, calcium, and copper. The numerous health benefits of peppermint oil include its ability to treat several health problems. Peppermint oil is said to cure indigestion. Use peppermint oil as a flavoring agent in food or add a few drops in a glass of warm water and drink it after your meal. Being carminative in nature, peppermint oil helps to dispel gas. It also eases stomach and bowel spasms and is the best antidote for an upset stomach. Peppermint oil benefits the respiratory system. The menthol in peppermint oil helps to clear the respiratory tract. The oil of peppermint acts as an expectorant and provides relief during a regular bout of cold and cough, and the more serious sinusitis, asthma, and bronchitis.