<section begin=glossary />
- Rationale answers this question: How can you find out the answer to the research question?
It attempts to describe the internal structure of the part of reality that the object is intended to describe and the relations of the interior with reality outside the scope. For assessment objects, definition appears in practice as a list of contents. For variables, it is a description of how the result of the variable can be derived or calculated. <section end=glossary />