In early 2015 VMware acquired Immidio, the creators of UEM, and begun offering their persona management product both as a standalone product and as part of Horizon Enterprise Edition. While Horizon already included a persona management utility known as Horizon Persona Management, it represented an improvement over traditional Windows roaming profiles, and not a comprehensive user persona management solution with robust customization capabilities. The VMware UEM FAQ (https://www.vmware.com/files/pdf/products/user-environment-manager/vmware-user-environment-mngr-faq.pdf) states that the product easily scales to support more than 100,000 users, which is well beyond most Horizon infrastructure sizes.

While UEM improves on Horizon Persona Management in almost every way, it doesn't handle the management of user data, only the settings needed to enable a personalized user experience across UEM client sessions. This feature is certainly a benefit of Horizon Persona...