| Licensing | Resells ISE licences and tracks endpoint counts and renewals with you | Sets licence terms, tiers and endpoint measures | Agrees scope and signs the order |
| Platform software | Operates ISE nodes, monitors their health and plans capacity | Provides the software and fixes product defects | Provides the virtual or physical hosts where nodes run in your data centers, unless agreed otherwise |
| Network equipment | Configures switch and wireless controller settings that ISE needs, under your change process | Provides the switch and wireless features ISE relies on | Owns the switches, controllers and network design, and approves changes to them |
| Access policy | Designs and maintains authentication, profiling and authorization policies | Provides policy, profiling and posture capabilities | Decides which device types and users get which access |
| Enforcement | Moves locations from monitoring to enforcement in agreed stages and watches the effect | Enforces the policy configured | Approves each stage, with clinical engineering sign-off for clinical areas |
| Device classification | Triages unknown and newly profiled devices and proposes a classification | Provides profiling data and libraries | Clinical engineering and IT confirm what each device is and who owns it |
| Monitoring and alerts | Watches authentication failures, quarantines and node health, and triages alerts | Provides logs, alarms and context sharing | Receives escalations and decides on response |
| Incident response | Investigates access problems, restores service on the access layer and releases devices when authorized | Resolves product defects through support cases | Leads security incidents and patient safety decisions |
| Patches and upgrades | Plans, tests and applies ISE patches and upgrades in agreed windows | Publishes patches, versions and support timelines | Agrees maintenance windows |
| Exceptions | Records each exception with its owner, reason and end date | No role | Approves exceptions and accepts the risk |