Book Image

Solutions Architect’s Handbook - Second Edition

By : Saurabh Shrivastava, Neelanjali Srivastav
4 (2)
Book Image

Solutions Architect’s Handbook - Second Edition

4 (2)
By: Saurabh Shrivastava, Neelanjali Srivastav

Overview of this book

Becoming a solutions architect requires a hands-on approach, and this edition of the Solutions Architect's Handbook brings exactly that. This handbook will teach you how to create robust, scalable, and fault-tolerant solutions and next-generation architecture designs in a cloud environment. It will also help you build effective product strategies for your business and implement them from start to finish. This new edition features additional chapters on disruptive technologies, such as Internet of Things (IoT), quantum computing, data engineering, and machine learning. It also includes updated discussions on cloud-native architecture, blockchain data storage, and mainframe modernization with public cloud. The Solutions Architect's Handbook provides an understanding of solution architecture and how it fits into an agile enterprise environment. It will take you through the journey of solution architecture design by providing detailed knowledge of design pillars, advanced design patterns, anti-patterns, and the cloud-native aspects of modern software design. By the end of this handbook, you'll have learned the techniques needed to create efficient architecture designs that meet your business requirements.
Table of Contents (22 chapters)
20
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21
Index

Learning the challenges of legacy systems

A legacy application presents significant challenges for an organization. On the one hand, there are critical applications that an organization has been using for decades. On the other hand, legacy applications are holding back the organization's pace of innovation.

In a hugely competitive environment, end users are looking for the most modern, technologically advanced applications. All new features usually come with the latest software, and legacy applications limit your ability to add those features and benefit end users. The following diagram shows some significant challenges that organizations are facing with legacy systems:

Figure 17.1: Challenges with a legacy system

At the top level, the CIO owns an application portfolio that represents the business processes of the organization. The portfolio of applications can be from hundreds to thousands depending upon the organizations' size. There are four discernable...