Sub-agent Sub-agent Sub-agent (Sub-agency) is a real estate term in the United States and Canada describing the relationship which a real estate broker and his/her agents have with a buyer of a business, home, or property. Lasting until the early 1990s, the broker provided a conventional full-service, commission-based brokerage relationship under a signed listing agreement only with a seller, thus creating an agency relationship with fiduciary obligations under common law in most of the US and Canada. The seller was then a client of the broker. However, no such agency relationship existed with the buyer, and the broker's agents helped the
The purpose of a system is what it does be balanced by a more straightforwardly descriptive view. The term is used in many fields including biology and management. 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