When markets are growing and IT solutions are stable yet competitive, Magic Quadrants provide the best tool for understanding the positioning of the providers; however, when new markets emerge and the offerings and user requirements are in flux, solutions are often difficult to compare, making a competitive positioning less useful. Or, when a market matures to the point that the offerings become fairly interchangeable, comparative positioning is less important than an analysis of and recommendations about the market itself. In these scenarios, a Gartner Market Guide can provide the right insight.