Margaret of Anjou Margaret of Anjou Margaret of Anjou (; 23 March 1430 – 25 August 1482) was the Queen of England by marriage to King Henry VI from 1445 to 1461 and again from 1470 to 1471. Born in the Duchy of Lorraine into the House of Valois-Anjou, Margaret was the second eldest daughter of René, King of Naples, and Isabella, Duchess of Lorraine. She was one of the principal figures in the series of dynastic civil wars known as the Wars of the Roses and at times personally led the Lancastrian faction. Owing to her husband's frequent bouts of insanity, Margaret
IEEE 1471 of software-intensive systems". It has long been recognized that "architecture" has a strong influence over the life cycle of a system. However, until relatively recently, hardware issues have tended to dominate architectural thinking, and software aspects, when considered at all, were often the first to be compromised under the pressures of development. IEEE 1471 was created to provide a basis for thinking about the architecture of software-intensive systems. IEEE 1471's contributions can be summarised as follows (in this list, items in "italics" are terms defined by and used in the standard): IEEE 1471 provides informative annexes that relate its concepts