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Solutions Architect's Handbook - Second Edition

You're reading from  Solutions Architect's Handbook - Second Edition

Product type Book
Published in Jan 2022
Publisher Packt
ISBN-13 9781801816618
Pages 590 pages
Edition 2nd Edition
Languages
Authors (2):
Saurabh Shrivastava Saurabh Shrivastava
Profile icon Saurabh Shrivastava
Neelanjali Srivastav Neelanjali Srivastav
Profile icon Neelanjali Srivastav
View More author details

Table of Contents (22) Chapters

Preface 1. The Meaning of Solution Architecture 2. Solution Architects in an Organization 3. Attributes of the Solution Architecture 4. Principles of Solution Architecture Design 5. Cloud Migration and Hybrid Cloud Architecture Design 6. Solution Architecture Design Patterns 7. Performance Considerations 8. Security Considerations 9. Architectural Reliability Considerations 10. Operational Excellence Considerations 11. Cost Considerations 12. DevOps and Solution Architecture Framework 13. Data Engineering for Solution Architecture 14. Machine Learning Architecture 15. The Internet of Things Architecture 16. Quantum Computing 17. Rearchitecting Legacy Systems 18. Solution Architecture Document 19. Learning Soft Skills to Become a Better Solution Architect 20. Other Books You May Enjoy
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...

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