for example, in developing a fabric that is meant to be used for upholstered furniture in a public office building, it is necessary to analyze the conditions under which the fabric will be used, the stresses to which it will be subjected, the users' expectations for how the fabric will perform, and then, how the various individual structural characteristics of a fabric will contribute to an acceptable upholstery fabric that will perform adequately as the upholstered furniture is used repeatedly by office workers or visitors in the office building.