The Danielson Framework for Evaluation is a research-based system developed by Charlotte Danielson, designed to enhance teacher effectiveness and evaluation through 22 components organized into four teaching responsibility domains. The framework has evolved since its original publication in 1996, with updates reflecting new research and education standards, including specific guidelines for its application in various educational roles. The 2013 edition includes critical attributes for evaluating performance aligned with the Common Core State Standards, emphasizing a focus on student learning.