A Model of Learning Objectives
Among other modifications, Anderson and Krathwohl’s (2001) revision of the original Bloom’s taxonomy (Bloom & Krathwohl, 1956) redefines the cognitive domain as the intersection of the Cognitive Process Dimension and the Knowledge Dimension.
This document offers a three-dimensional representation of the revised taxonomy of the cognitive domain. Although the Cognitive Process and Knowledge dimensions are represented as hierarchical steps, the distinctions between categories are not always clear-cut. For example, all procedural knowledge is not necessarily more abstract than all conceptual knowledge; and an objective that involves analyzing or evaluating may require thinking skills that are no less complex than one that involves creating. It is generally understood, nonetheless, that lower order thinking skills are ubsumed by, and provide the foundation for higher order thinking skills.
Source -> http://www.celt.iastate.edu/pdfs-docs/teaching/RevisedBloomsHandout.pdf