1. In a computing environment, a method of creating a new component model from an existing component model, the method comprising; accessing an existing component definition, wherein the existing component definition is included in an existing component schema, which includes definitions of configuration parameters defined for the existing component including defining that one or more parameters are further configurable; refining definitions of the one or more parameters that are defined as being further configurable; storing the refined definitions for the one or more parameter values in a refined schema defining refinements of the component definition, without including the existing component schema, and wherein the refined schema is stored separately from the existing component schema.