How to Do BCG Plotting
santiago, HR Consultant, Angola
I would comment that the model is used to evaluate the state of your portfolio of products of markets
Thus you have black and white TV, colour TV and HDTV, new SMDTV (super mobile HDTV) for example.
The black and white is a dog, no real sales, colour is the cash cow, HDTV the star, and SMDTV is a question mark. The size of the circle can be used to show the size of the market or the net contribution to the business, if you want market share suggest using a different model.