Automatic services instantiation based on a process specification

A relevant challenge for cloud computing is related to quality control of provided services. Normally, cloud providers deliver services, but do not clearly guarantee their quality level. In addition, each provider uses a particular process to provide service, considering only its own business goals. This paper presents an approach based in an environment model for clouds and aims to propose a solution for these cloud challenges. It intends to define a service procurement process taking into account users requirements, and also considers service quality maintenance. This process uses an environment model containing all relevant information to create a virtual workspace (from just an individual virtualized platform to platforms hosted in clouds), considering hardware and software requirements and quality parameters, all of which are specified by users, to precisely offer the expected service. From this model, it will be possible to automatically provide infrastructure and platform as a service. The agreement negotiation happens during the service acquisition process, using automated agents to create services and to monitor their quality, generating an environment less error-prone and increasing the customer satisfaction level.