QoSE (QoS Experienced by the User)

QoS experienced by users reflect the subjective point of view of a user in certain circumstances they experienced. Customer satisfaction is one of the driving factors for this type of QoS. In general, QoSE described in nontechnical parameters. Telecom service providers can measure the level of QoSE by conducting a survey to its customers or to seek advice and input from them. At this stage, a user combines personal experience with the expected technical quality of the service it uses. In addition to technological aspects, there are several other factors that affect the level of QoSE. Some of these factors such as starting from the signing of the contract between the user and the service provider, the service provider the ability to handle probleM faced by customers, and the overall relationship between the customer and the service provider. Thus, it can be concluded that QoSE quite difficult to measure because there are several factors "hidden" are not easy to identify. 

QoSD (QoS Delivered by the Service Provider)
QoSD reflect the level of QoS that has been successfully achieved by the telecom service providers. QoSD can test the ability of a telecommunications service provider to deliver the promised QoS.