This document discusses summative evaluation, which involves collecting outcome data to assess instructional materials and determine their effectiveness. It describes the two main phases of summative evaluation: the expert judgement phase and the field trial phase. The expert judgement phase involves design analysis, content analysis, current user analysis, utility/feasibility analysis, and congruence analysis to evaluate components of the instructional strategy. The field trial phase tests the materials in real environments and analyzes outcomes and management impacts. Summative evaluation aims to judge program effectiveness, while formative evaluation identifies strengths and weaknesses during development.