| 摘要 |
<p>A systems analysis board has a backing board (1) on which can be detachably placed various flow chart symbol pieces (6) to formulate a desired flow chart for computer programming or the like. The pieces can be interconnected by lines drawn on the backing board (1) by an erasable marker. The board may have a cover (2) a detaand a detachable face sheet (4) with a grid pattern. The pieces (6) may be flat and magnetically adhered to the backing board (1) to enable the board to be inverted for reproduction of the flow chart by photocopying.</p> |
