Market segmentation involves dividing a market into distinct subgroups of customers with distinct needs, characteristics, or behaviors. Cluster analysis is commonly used to group customers into market segments based on characteristics like demographics, needs, or behaviors. Discriminant analysis can then describe the segments by identifying variables that differentiate the segments. Four potential market segments for PDAs were identified based on cluster analysis: phone users who value email and multimedia; messaging and cell phone users needing remote access; pager users requiring fast information sharing and remote access; and innovators wanting email, web, and multimedia on a sleek device.