Book Image

Architectural Patterns

By : Murali, Pethuru Raj, J, Pethuru Raj Chelliah
Book Image

Architectural Patterns

By: Murali, Pethuru Raj, 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)

Introduction to SOA

SOA is an architectural style of services and not a technology or any programming language. It defines standards and ways to design and develop a service.

Service is the logical representation of repeatable business activities* that have a specified outcome. It is self-contained, Provides guidelines to combine a service with other services. It is also an abstract or black box to the consumer who consumes it.

*The following are a few examples of business activities with specific outcomes:

  • Get city's weather report
  • Get stock quote of given stock code
  • Get hotel booking details by booking ID
  • Get user profile information for given user ID

In short, SOA is essentially a collection of services, and those services communicate with each other, and a service is an operation or a function that is well-defined, self-contained, and independent of other service contexts...