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

Product typeBook

Published inMar 2024

Reading LevelIntermediate

PublisherPackt

ISBN-139781835084236

Edition3rd Edition

Languages

Java

Tools

AWS CDK

Concepts

Cloud Computing

Authors (2):

Saurabh Shrivastava

Neelanjali Srivastav

View More author details

Looking at legacy system modernization techniques

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:

A picture containing text, screenshot, font, design Description automatically generated

Figure 15.4: Legacy system modernization techniques

Let’s examine 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 should use this approach. With encapsulation...

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Solutions Architect's Handbook - Third Edition

Published in: Mar 2024Publisher: PacktISBN-13: 9781835084236

Authors (2)

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 the area of 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.
Read more about Saurabh Shrivastava

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.
Read more about Neelanjali Srivastav

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