Educational taxonomies are classification schemes which provide the terminology that educationalists need to describe and work with different areas of knowledge. It is good practice to use taxonomies to formulate and review curricula, learning objectives, and associated assessments. Demonstrating sufficient coverage of each of an adequate range of knowledge domains is critical for authenticity, for assessment reliability, and for transparency surrounding what students are learning. In this study we explored whether any educational taxonomies that were designed for general educational contexts (sometimes called 'academic' contexts) could be utilised in applied educational contexts (often called 'vocationally-related' in England). To do this, we identified nine published taxonomies with sufficient potential, and selected and combined the most appropriate. This process led us to develop a new model of demand. We then applied the selected taxonomies experimentally to existing curricula in a range of applied subjects which are taught at secondary and tertiary level in England. We also used the selected taxonomies to develop a tool for writing educational objectives. This article ends with suggestions for applying the selected taxonomies in other areas of assessment.