"Three types of knowledge structures are declarative, procedural, and strategic. Declarative knowledge tells us why things work the way they do, or that an object or thing has a particular name or location. It includes information about the concepts and elements in the domain and the relationships between them. Procedural knowledge tells how to perform a given task. It contains the discrete steps or actions to be taken and the available alternatives when performing a given task. With practice, procedural knowledge can become an automatic process, thus allowing people to perform tasks without conscious awareness. Strategic knowledge is composed of information that is the basis of problem solving, such as action plans to meet specific goals, knowledge of the context in which procedures should be implemented, actions to be taken if a proposed solution fails, and how to respond if necessary information is absent". (DHS, DHS Training Glossary, 2006, p. 32)