Learning taxonomies like Bloom’s Taxonomy (revised in 2000 by Anderson and Krathwohl) are a classification system for learning objectives. These taxonomies are useful tools for designers as they write course objectives to help create effective training. Check out the following resources related to Bloom’s Taxonomy.
Understanding Bloom’s Taxonomy
Guide to Taxonomies of Learning
Handout for Revised Bloom’s Taxonomy
Verbs for the Revised Bloom’s Taxonomy