History of the English penny (1154–1485) the continental price of silver, thus putting an end to the illegal export of English coinage. The heavy coinage was minted at London and York, inscribed – "Henry by the Grace of God King of England", while the light coinage was minted at London, York, and Durham, inscribed . Henry V (1413–1422) continued his father's light coinage, with similar inscriptions on the coins produced at London, Durham, and York. Henry VI (1422–1461, 1470–1471) came to the throne as an infant. He favoured making peace with France, but his heir, Richard, Duke of York, a descendant of the second son of
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