This essay examines the application of the TOGAF (The Open Group Architecture Framework) framework in the development of an online movie ticket booking system. The essay begins with an introduction to IT architecture and the rationale for using TOGAF, a valued tool for constructing diverse IT architectures. It then outlines the evaluation criteria, including cost, performance, and capacity, demonstrating how TOGAF can improve these aspects. The evidence and analysis section includes a detailed requirements model with a use case diagram illustrating actors and use cases, followed by functional and non-functional requirements specifications. An architectural model is also presented. The essay concludes by summarizing the benefits of using TOGAF and its role in designing the online movie ticket booking system. References to supporting literature are also provided.