Auto-negotiated service level agreements in service negotiation protocols with guaranteed quality of services

This paper deals with the auto-negotiation problem in service negotiation protocols (SrNP) where service level agreements (SLA) with guaranteed quality of services (QoS) are made. At first, a constrained resource allocation problem is formulated to allocate the available resources provided by the service provider to satisfy customers´ requirements. If the service provider can satisfy customer´s requirements, contracting between both parties is then followed. Otherwise, for the case where there is no solution to meet customers´ requirements, the customer can change their requirements and negotiate with service provider again three times before seeking for the alternatives. A mental model is developed for a customer to adjust the profile of the requirements for the second- or third-round of negotiation. A penalty model is used to protect customers from failing to achieve the contracted customers´ requirements in the service provider.