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Solutions Architect's Handbook

You're reading from Solutions Architect's Handbook Kick-start your career as a solutions architect by learning architecture design principles and strategies

Product type Paperback

Published in Jan 2022

Publisher Packt

ISBN-13 9781801816618

Length 590 pages

Edition 2nd Edition

Concepts

Solution Architecture

Authors (2):

Saurabh Shrivastava

Neelanjali Srivastav

View More author details

Table of Contents (22) Chapters

Preface

1. The Meaning of Solution Architecture

2. Solution Architects in an Organization FREE CHAPTER

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

Looking at legacy system modernization techniques

As per your existing application analysis, you can take various approaches to upgrade your legacy system. The most straightforward approach is migration and rehosting, where you don't need to change the existing system. However, a simple migration may not solve the long-term problem or provide any benefits.

You can take a more complex approach, such as rearchitecting or redesigning the entire application if the system no longer meets business needs. The following diagram illustrates the impact of the various methods:

Figure 17.4: Legacy system modernization techniques

Let's look in more detail at the various modernization techniques shown in the preceding diagram.

Encapsulation, rehosting, and replatforming

Encapsulation is the most straightforward approach. If the system is business-critical and needs to communicate with other applications running on the latest technology, you may want to use this...

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Authors (2)

Saurabh Shrivastava

Saurabh Shrivastava

Saurabh Shrivastava is a technology leader, author, inventor, and public speaker with over 18 years of experience in the IT industry. He currently works at Amazon Web Services (AWS) as a Global Solutions Architect Leader and enables global consulting partners and enterprise customers on their journey to the cloud. Saurabh led the AWS global technical partnerships, set his team's vision and execution model, and nurtured multiple new strategic initiatives. Saurabh has authored various blogs and whitepapers across a diverse range of technologies, such as big data, IoT, machine learning, and cloud computing. He is passionate about the latest innovations and their impact on our society and daily life. He holds a patent in cloud platform automation. Before AWS, Saurabh worked as an enterprise solution architect, software architect, and software engineering manager in Fortune 50 enterprises, start-ups, and global product and consulting organizations.

See other products by Saurabh Shrivastava

Neelanjali Srivastav

Neelanjali Srivastav

Neelanjali Srivastav is a technology leader, product manager, agile coach, and cloud practitioner with over 16 years of experience in the software industry. She currently works at Amazon Web Services (AWS) as a Senior Product Manager and enables global customers on their data journey to the cloud. Neelanjali evangelizes and enables AWS customer and partners in AWS database, analytics, and machine learning services. She sets the product vision and cultivates new products in incubation. Before AWS, Neelanjali led teams of software engineers, solutions architects, and systems analysts to modernize IT systems and develop innovative software solutions for large enterprises. Neelanjali has held multiple roles in the IT services industry and R&D, focusing on enterprise application management, cloud service management, and orchestration.

See other products by Neelanjali Srivastav

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