Question marks (also known as problem children) are businesses operating with a low market share in a high growth market. They are a starting point for most businesses. Question marks have a potential to gain market share and become stars, and eventually cash cows when market growth slows. If question marks do not succeed in becoming a market leader, then after perhaps years of cash consumption, they will degenerate into dogs when market growth declines. Question marks must be analyzed carefully in order to determine whether they are worth the investment required to grow market share.