A process for clouds services procurement based on model and QoS

A relevant challenge for cloud computing is related to quality control of the services available. Cloud providers sometimes just deliver services, but do not clearly define quality of services guarantees. In addition, each provider uses a particular process to provide services. In this way, aiming to define a service procurement process to clouds, this paper proposes an approach based on a cloud environment model, considering service quality preservation. The proposed process will use an environment model containing all relevant information to create a virtual workspace, taking into account requirements of hardware and software and quality parameters, all of them specified by users. From this model, it will be possible to automatically provide platform and infrastructure as a service. The agreement negotiation happens during the service acquisition process from automated agents, creating the services and monitoring their quality attributes, generating an environment less error-prone, increasing the customer level satisfaction.