This use case study is a written assessment of the Department of Defense’s (DoD’s) Mobility Capabilities Study 2005
(MCS 2005), based on the General Accountability Office’s (GAO’s) evaluation. The GAO identified several deficiencies
that undermined the credibility of the analysis and found that DoD practice did not match DoD policy. In response, the DoD drafted new guidelines for the Verification, Validation, and Accreditation (VV&A) of models and simulations. This document is an application of those guidelines to evaluate the VV&A practices in MCS 2005 after the fact.