The DoD Training Transformation (T2) program, as outlined in the "Training Transformation Strategic Plan (March 1, 2002)," has two major, interrelated missions: The first is to transform training to better enable joint operations in the future. The second is to function as the key enabler to achieving the operational goals of the overarching transformation of the Department of Defense. In the T2 Strategic Plan, DoD leadership and stakeholders recognized the requirement for the assessment and reporting of joint training readiness, joint and interoperability training performance, and overall T2 program performance. Training Transformation's impact on training, and training's impact on joint operations, as aspects of force readiness, must be assessed and reported in order to provide effective feedback mechanisms for programmatic decisions and lessons learned. The impact of training and T2 on the emerging training needs of DoD Force Transformation also must be assessed and reported. The T2 Implementation Plan established biennial Joint Assessment Enabling Capability (JAEC)-led Block Assessments as the primary mechanism for assessing joint training capabilities and T2 integration and management. The first of these Block Assessments will occur in FY 2005. The 2005 Block Assessment will examine and leverage the Training Capabilities Analysis of Alternatives, the DoD Balanced Score Card, the Defense Readiness Reporting System and the Individual Training Readiness Report to provide consistent measures of merit for Training Transformation. This paper and presentation will address approach and metrics development for the Block Assessment.