Several years ago, the Joint Staff noted significant discrepancies between the results of command, control, and communications (C3) network functional assessments made using different models, even though the networks were similar and the databases appeared to be identical. The consensus arising from a 1984 Joint Staff workshop to resolve these discrepancies was that (1) the databases were not, in fact, identical and (2) development of common databases and methods could minimize differences between the functional assessments and aid in understanding any remaining differences. The strategic C3 community has made it clear that a baseline, standard common-format database is necessary to expeditiously and efficiently meet the requirements of current Department of Defense directives. This report describes the results of a project that the Joint Staff initiated to develop and test the usefulness of a baseline common-format database. The report presents an enumeration of the tools in use by the strategic C3 analysis community; describes a prototype common-format database approach; and estimates the scope of the effort required to provide the database, support software, and documentation.