Planetary architectures is a research field that focuses on the study of the formation and evolution of planetary systems, including the arrangement of planets in a given system, their orbital dynamics, and their interactions with other bodies such as moons, asteroids, and comets. Researchers in this field use a combination of observational data, theoretical models, and simulations to understand the processes that shape planetary systems and determine their unique architectures. Key questions in planetary architectures include how planets form and migrate within a protoplanetary disk, how their orbits become stable or unstable over time, and how the structures of planetary systems are influenced by factors such as gravitational interactions, tidal forces, and planetary migration. Overall, this field aims to understand the diversity and complexity of planetary systems in the universe and to uncover the underlying physical principles that govern their formation and evolution.