The answer would depend on the specific architectural design in question. However, if you're referring to a design that emphasizes repeating geometric shapes, the appropriate choice would be:
using a geometric pattern in the form of a tessellation.
If the design reflects nature or has an undulating form, it might be:
using an organic pattern in the form of a tessellation.
Without more details about the design, it's difficult to determine which statement is correct. If you'd like to clarify or provide more context, I can help you further!