These combined functions essentially define how the process of admitting users and devices to a network is undertaken.
ISE is however a cutting edge, sophisticated platform for this process. It can undertake profiling of clients to ensure they have up to date software, or meet the corporate requirements for connection. Often used with Bring Your Own Device (BYOD) deployments – either wired or wireless – ISE provides the ability to on-board clients. You can provide your users with the access to sign up their own devices, after which they are admitted to the network, providing seamless access in future.
Cisco haven’t cornered the market though, as Aruba also have a similar product in the Clearpass software solution.