Sooner or later the preparation activities lead to a public announcement of The new product through advertising, sales calls, and other promotional tactics. the announcement is often called launch Most firms today execute the launch gradu ally, over a at least several weeks, since there are suppliers to bring on line, sales period of trained, large forces to be trained, distributors to be stocked and and a set of market support people to be educated(columnists, scientists, government people, and others)