A Flexible Model and Implementation of Component Controllers

The GCM (Grid Component Model) is a component model that is being defined by the CoreGRID institute on Programming Models; it is based on the Fractal component model. It is intended at overcoming the insufficiencies of the existing component systems when it comes to Grid computing. Its main characteristics are: hierarchical composition, structured communications with support for asynchrony, support for deployment, functional and non-functional (NF) adaptivity, and autonomicity. As in the Fractal component model, the GCM distinguishes controllers which implement NF concerns and are gathered in a membrane from the functional content of the component.