 The security solutions can handle E2E security in the enterprise that includes simple fire- wall based software solutions to complex security gateway policy managers. 58. Service performance management: These applications help to monitor the service performance including the customer's experience using the service. These applications collect data from network performance management solu- tions and compute the values of service performance from the network data. These applications provide reports on the quality of service and variations in service key performance indicators. Service performance management provides both current performance data as well as the historical view of service performance. This helps in service and infrastructure planning. Resource performance is not the only feed for service performance man- agement application. The service performance management application can perform tests to determine service performance either from the application or using external service test tools or applications. 59. Service problem management: These applications provide a service view of the customer problem. It interacts closely with customer problem manage- ment and network problem management applications. It is also common to have a single module for managing the three views for problem resolution. The problem reported by the customer is mapped to service level impacts and assigned to the appropriate team for resolution using this application. These applications first collect the problem details, consolidate the prob- lem information, set appropriate priority, assign the problem to the appropri- ate department for resolutions, and manage the problem to closure. It also prepares a closure report that can be referred to in future for solving a similar or related problem. Interacting applications are informed on the status of the problem during change in status or when queried. 60. Service event monitoring: These applications monitor the service parameters in configuration and fault. It helps the operator to be