Developing a plan for the ongoing development and support of the classification will involve consideration of governance and maintenance arrangements, as well as the issues of access, availability and intellectual property ownership and management. Maintenance of classification systems can be difficult, time-consuming and thankless work. International classifications, like that of diseases, rely on a lengthy consensual process of experts to identify and agree upon new entries. 63 However, new capabilities made possible by the Internet and the development of the Semantic Web present opportunities to distribute the maintenance burden across many contributors, and to dramatically speed up consensual agreement. 64 These will be explored as part of scoping the requirements for ongoing development and support of the classification.