"A Magic Quadrant provides a graphical competitive positioning of four types of technology providers in markets where growth is high and provider differentiation is distinct:
Leaders execute well against their current vision and are well-positioned for tomorrow.
Visionaries understand where the market is going or have a vision for changing market rules, but do not yet execute well.
Niche Players focus successfully on a small segment or are unfocused and do not out-innovate or outperform others.
Challengers execute well today or may dominate a large segment but do not demonstrate an understanding of market direction."
Source: Gartner Magic Quadrant Research Methodology