Sarah Moon photography rather than modelling, adopting Sarah Moon as her new name. She successfully captured the fashionable atmosphere of London after the "swinging sixties", working closely with Barbara Hulanicki, who had launched the popular clothes store Biba. In 1972, she shot the "Pirelli" calendar, the first woman to do so. After working for a long time with Cacharel, her reputation grew and she also received commissions from Chanel, Dior, Comme des Garçons and "Vogue". In 1985, Moon moved into gallery and film work. She later directed the music video for Cheb Khaled's pop hit Aïcha. Sarah Moon Sarah Moon (born 1941),
Biba Model Bell–LaPadula model. In general, preservation of data "integrity" has three goals: This security model is directed toward data "integrity" (rather than "confidentiality") and is characterized by the phrase: "read up, write down". This is in contrast to the Bell-LaPadula model which is characterized by the phrase "read down, write up". In the Biba model, users can only "create content at or below" their own integrity level (a monk may write a prayer book that can be read by commoners, but not one to be read by a high priest). Conversely, users can only "view content at or above" their own