Summary: GAO discussed the status of testing and evaluation in the Department of Defense (DOD). GAO found that: (1) unrealistic test conditions and analysis and reporting problems cast doubt upon the validity of joint services evaluations; (2) although DOD established an Office for Testing and Evaluation, its methodology was not adequate to assess the effectiveness and suitability of major conventional weapons systems; (3) each of the reports reviewed contained incomplete or inaccurate information and did not contain evidence to support the majority of the favorable overall assessments of testing adequacy and of system effectiveness and performance; and (4) current law, combined with DOD directives, should provide the necessary organizational structure and guidance for the conduct and reporting of sound operational test and evaluation. GAO believes that DOD needs to determine how to ensure: (1) that weapon performance assessments are not overly favorable; and (2) the completeness and accuracy of the information it gives to Congress.