The slides provided herein encapsulate the foundational principles and intricacies of Architectural Design as delineated within the esteemed tome, "Software Engineering," authored by Ian Sommerville in its seventh edition. This comprehensive compendium serves as a beacon, guiding students and practitioners alike through the labyrinthine landscape of software architecture, imparting a nuanced understanding of its theoretical underpinnings and practical applications. Each slide meticulously curated to elucidate key concepts, methodologies, and best practices, fostering an environment conducive to robust comprehension and proficiency attainment. It is within this pedagogical framework that learners embark upon a transformative journey, transcending mere acquaintance to achieve mastery in the domain of Architectural Design.