ˌsɜːtɪfɪˈkeɪʃən ˌsɝtɪfɪˈkeɪʃən ˌdɑkjəmənˈteɪʃən ˌdɒkjʊmənˈteɪʃən documentary validation his documentation of the results was excellent the strongest support for this view is the work of Jones program listings or technical manuals describing the operation and use of programs confirmation that some fact or statement is true through the use of documentary evidence