A unified quality of recovery (QoR) measure

Many recovery procedures have been developed in recent years. A carrier aiming at guaranteeing an appropriate level of resilience faces the following problem: Which of the proposed recovery procedures should be deployed to maximize revenue? The answer requires many decisions. Some key questions can be formulated as follows: Which procedures can be deployed in a particular network?; Which of them are attractive enough to be developed by R&D divisions?; To what extent are the proposed procedures effective?; What can be the risk of providing a client with recovery procedures which are cheaper but less reliable? The precise assessment and measurement of ensured parameters and a cost calculation should be elaborated. Then, an operator is able to take a well-justified decision concerning the recovery procedures adjusted to client needs. For example, a client whose tele-medicine applications are based on a communication service will be willing to pay much more for a very high level of reliability; whereas another, which uses the network mostly for data transfer, will accept longer outages at reduced costs. To both of them an offer suitable for their requirements should be suggested in advance.