Abstract

The International Classification of Diseases (ICD) has been employed by the world's public health officials to chart the nature, frequency, and geographic origins of diseases and causes of death in human populations since the late nineteenth century. The ICD has been modified every decade since the 1890s. A study by Bowker and Star (2000) of these changes, in concert with the work of others on the practices employed in information mapping, can be used to better understand the organization of large-scale web sites. Specifically, web designers must adapt classification schemes to fit multiple social worlds. Additionally, we need to understand that these systems can become so entrenched in our thinking that they become "invisible", thus undermining our ability to adapt them as future needs or insights arise.