What does the articulation of a form's importance or significance, relative to other forms and spaces, refer to?

The articulation of a form's importance or significance, relative to other forms and spaces, is best described by the concept of hierarchy. In architectural theory, hierarchy refers to the arrangement and organization of elements in a way that conveys their relative importance. This can be expressed through various means such as size, scale, proportion, location, or spatial relationships.

Hierarchy helps in establishing visual or experiential dominance among forms, making certain elements stand out as more significant than others. For instance, in a building, a grand entrance may be designed to be more imposing than adjacent elements, thereby guiding the observer's perception and experience of the space.

Other concepts like sequence pertain to the order or progression through which spaces are experienced, while datum refers to a referential element used for organizing components within a design. Transformation relates to the changes in forms or spaces over time. While all these concepts are essential in architectural design, hierarchy specifically encapsulates the idea of relative importance among various forms and spaces.