Assessment is used to describe the process of gathering information to make judgments about how well someone has performed, how much progress has been made, and how much potential someone has. In other words, gathering information and forming judgments are both indispensable to good teaching. Educational institutions, government agencies, and professional associations are placing increasing emphasis on assessing performance in relevant areas of their domains. In this chapter, several issues important to the establishment of appropriate assessment procedures and the potential uses of both traditional and innovative assessment techniques are discussed. Finally, the limitations of traditional assessment techniques are considered, followed by the future perspectives on assessment techniques. [For the complete volume, "Traditional and Innovative Assessment Techniques for Students with Disabilities. Advances in Special Education. Volume 36," see ED614233.]