Book Image

Architectural Patterns

By : Anupama Murali, Harihara Subramanian J, Pethuru Raj Chelliah
Book Image

Architectural Patterns

By: Anupama Murali, Harihara Subramanian J, Pethuru Raj Chelliah

Overview of this book

Enterprise Architecture (EA) is typically an aggregate of the business, application, data, and infrastructure architectures of any forward-looking enterprise. Due to constant changes and rising complexities in the business and technology landscapes, producing sophisticated architectures is on the rise. Architectural patterns are gaining a lot of attention these days. The book is divided in three modules. You'll learn about the patterns associated with object-oriented, component-based, client-server, and cloud architectures. The second module covers Enterprise Application Integration (EAI) patterns and how they are architected using various tools and patterns. You will come across patterns for Service-Oriented Architecture (SOA), Event-Driven Architecture (EDA), Resource-Oriented Architecture (ROA), big data analytics architecture, and Microservices Architecture (MSA). The final module talks about advanced topics such as Docker containers, high performance, and reliable application architectures. The key takeaways include understanding what architectures are, why they're used, and how and where architecture, design, and integration patterns are being leveraged to build better and bigger systems.
Table of Contents (13 chapters)

Integrating with legacy systems

Legacy systems is always a case in the real world, and they come with exciting challenges while we try to incorporate the latest industry improvements into them. In DDD, this problem is more interesting to address as there are many handy patterns available that help limit the impact of the legacy on the other parts of the system, manage complexity, and save designers from having to reduce explicitness (against DDD philosophy) of their new code to integrate into legacy modules or components.

We will touch upon bubble context, autonomous bubble context, and expose legacy systems as services in this section.

The bubble context

If a team wants to start applying the DDD to the legacy systems but...