Axis
An Axis has a linear condition with qualities of length and direction. It is terminated at both ends and can be established by a symmetical arrangement of forms and spaces.
The axis of symmetry divides this space evenly.
S Interior Design Blog
Symmetry
Washington County Courtyard, Washington, PA
This dome structure is Radially Balanced.
Hierarchy
Hierarchy is a method used to make one object stand out more than the other or give it more importance by creating the building or object bigger than the rest of the elements surrounding it. Hierarchy can be determined by size, shape and placement.
The National Assembly in Bangladesh represents is an Hierarchy because of its location and the buildings that surround it is not as amazing as this structure.
Datum
A Datum is a line, plane or volume of referance to which other elements in a compostion can relate to. A Datum can be organized by cutting a line through a common edge, a plane to serve as a background to encompass the elements, or a volume can collect the pattern elements within its boundaries or along its perimeter.
Propylaeum.
The base in the volume in which all other elements are referring to.
Rhythm and Repetition
Rhythm is any movement characterized by a pattern of elements or motifs that repeat at regular or irregular intervals. Repetition is the simplest form and is a linear pattern of redundant elements. 
The repetition of the arches, black stripes and Barcelonia chairs are used to create this space.
Transformation
Transformation refers to the process that designers use. A prototypical architectural model is chosen for its formal structure and ordering of elements that are appropiate and reasonable and then tranforming it through a series of discrete manipulations.
The 2-D drawing/parti is transformed into a 3-D model
