The first, rough testing of a module idea to determine its main ingredients. Usually done with friends, its aim is to accept fresh ideas and honest criticism. The designer should be prepared to scrap just about anything and substantially modify her vision for the module. See Conceptual Playtest.
(computer science) a first test of an experimental product (such as computer software) carried out by the developer
a pilot test, generally conducted in the development environment, to ferret out the more common faults still left in the system code