1. A method for imposing policy modification constraints, comprising: providing in a database a policy pertaining to operational performance of a computer infrastructure, wherein the policy comprises a set of the attributes describing operational limitations of the computer infrastructure; associating in the database meta data with the policy, wherein the meta data specifies at least one modification constraint governing modification of at least one of the set of attributes; detecting by a processor of a computer an attempt to modify the policy with a value for one of the attributes and determining if the value is not permitted by the meta data; and, responsive to determining that the value is not permitted by the meta data, disallowing the modification of the policy but otherwise applying the modification to the policy in the database, wherein the meta data is embodied as a meta policy, and wherein the associating step comprises associating the meta policy with the policy.