Costermonger Costermonger Costermonger, coster, or costard is a street seller of fruit and vegetables, in London and other British towns. The term is derived from the words "costard" (a now extinct medieval variety of large, ribbed apple) and "monger" (seller), and later came to be used to describe hawkers in general. Some historians have pointed out that a hierarchy existed within the costermonger class and that while costermongers sold from a handcart or animal-drawn cart, mere hawkers carried their wares in a basket. Costermongers met a need for rapid food distribution from the wholesale markets (e.g., in London; Smithfield for meat,
The purpose of a system is what it does The purpose of a system is what it does The purpose of a system is what it does (POSIWID) is a systems thinking heuristic coined by Stafford Beer. Stafford Beer coined the term POSIWID and used it many times in public addresses. In his address to the University of Valladolid, Spain, in October 2001, he said "According to the cybernetician, the purpose of a system is what it does. This is a basic dictum. It stands for bald fact, which makes a better starting point in seeking understanding than the familiar attributions of good intention, prejudices about expectations, moral judgment,