 Having made this general point, the entry proceeded to discuss different models of disability, which differ principally in their understanding of the relationship between impairment and limitation. Whereas the medical model of disability tends to attribute most of the limitations associated with disability to functional aspects of the relevant impairments, the social model of disability emphasizes the mediating role of the social environment—broadly understood to include the configuration of physical space, the availability of various forms of accommodation, social practices and norms, etc.—in generating disability-related disadvantage. Among other things, the social model highlights the relational aspects of disability-related disadvantage, such as stigma, invisibility, and exclusion, whereas the medical model lends itself to a narrow distributive interpretation of the claims of justice generated by disability.