Book Image

Realize Enterprise Architecture with AWS and SAFe

By : Rajnish Harjika
Book Image

Realize Enterprise Architecture with AWS and SAFe

By: Rajnish Harjika

Overview of this book

Agile implementation of enterprise architecture (EA) in the cloud is a powerful organizational tool, but it is challenging, particularly for architects who are used to on-premises environments. This in-depth guide will tell you all you need to know to reap the benefits of applying EA in your organization to achieve operational efficiency. Starting with an overview of the foundations of enterprise architecture, you'll see how it can be applied to AWS as well as explore the frameworks AWS provides for EA, such as the AWS Well-Architected Framework. That's not all – the book shows you how these frameworks align with The Open Group Architecture Framework (TOGAF) architecture development method (ADM) and the Zachman Framework so that you can choose the right fit for your organization. As you advance, you'll learn how to apply SAFe to make your organization agile as well as efficient. Once you've gotten to grips with the theory, you can explore use cases and take a quiz at the end of the book to test yourself and see how EA is applied in practice. By the end of this enterprise architecture book, you'll have the skills and knowledge required to apply EA in the cloud with AWS and drive your organization to become super-efficient and agile.
Table of Contents (17 chapters)
1
Part 1 – Enterprise Architecture Foundation and Implementation
5
Part 2 – Enterprise Architecture Frameworks
9
Part 3 – SAFe in EA and the Cloud
12
Part 4 – Setting Up an EA

Types of cloud migration strategies

The three basic types or patterns of migration to the cloud are listed next. They are listed from the easiest and fastest, with some drawbacks, to the most difficult, with greater benefits:

  • Lift and shift
  • Move and improve
  • Rip and replace

Now, let’s dive deeper into the types of cloud migration strategies, along with their pros and cons.

Lift and shift (rehosting)

One advantage of lift and shift (rehosting) is that it takes less time than traditional hosting methods. It requires very little refactoring and takes less time to implement. Nevertheless, lifting and shifting could lead to a bare minimum number of changes, so you might not see the benefits you would see by going cloud-native. In the short term, speed and ease could cost you more than a more thorough migration – especially when compared to speed and ease in the short term.

Those organizations that are still far from cloud maturity can take advantage...