Singing Christmas Tree bass and heavier singers at the bottom of the tree. In reality, they are arranged in six sections. They are broken down with two sections of sopranos, two sections of altos, a section of tenors, and a section of bass. Singers who require sitting in a chair or a stool during the performance are located in the bottom two rows of the tree. Choir members who are acrophobic (fear of heights) are located near the bottom of the tree while claustrophobic (fear of restriction or suffocation) choir members are located at the outside of the tree. Most choir members stand
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,