Enterprise Cloud Architecture Patterns for Digital Transformation at Scale

The article examines the concept of applying architectural patterns of enterprise cloud systems to enable digital transformation at scale. The research objective is to develop an integrated approach that combines agile enterprise architecture methodologies, modern cloud technologies, and operating models for sustainable innovation in large organizations. The relevance of the work is defined by the need to overcome architectural constraints of legacy IT landscapes that hinder flexibility, scalability, and time to market. The Agile Enterprise Architecture paradigm is synthesized with and built upon a technological foundation of microservices, event-driven architecture, serverless and container-based deployment models, and multi-cloud strategies, all enabled by an operating model that integrates platform engineering, FinOps, and federated governance. This paper has analyzed how responding effectively to the dynamic digital economy cannot be done with traditional frameworks such as TOGAF, since they are oriented towards long planning cycles and centralized control. The Agile Enterprise Architecture allows architectural evolution in iterations, a decentralized decision-making process, and accelerated innovation delivery. The article will describe more deeply key technical patterns: microservices decomposition, business logic, event-driven architecture allowing loose coupling, and modern deployment models providing abstraction infrastructure for business system architects, CIOs, and digital transformation practitioners.