The present invention provides systems, methods and apparatus for automatically provisioning and managing resources in a computing utility. Its automation procedures are based on a resource model which allows resource-specific provisioning and management tasks to be encapsulated into components for reuse. These components are assembled into more complex structures and finally computing services. This invention provides a method for constructing a computing service from a set of resources given a high level specification. Once constructed, the service includes a component that provides management function, which can allow modification of its underlying set of resources.