What is cloud application modernisation, and why do you need it?

With the widespread adoption of cloud technologies over ten years, cloud application modernisation has become a turning point for many businesses. For instance, companies would not have been able to shift to remote work without global adoption of cloud technologies during the pandemic. However, moving to the cloud is not enough to stay competitive in the ever-evolving market. Businesses must constantly enhance their applications to stay ahead of the curve. This is what cloud application modernisation is all about. 

What is cloud application modernisation?

Cloud application modernisation is a process of transforming monolithic legacy applications into cloud applications. This process includes migrating to the cloud, containerising services, building apps with serverless design or using DevOps methodology to revamp data pipelines. Instead of completely replacing an existing system, cloud app modernisation allows businesses to extend their apps’ lifespan while leveraging the latest technologies. 

Why modernise legacy applications?

Legacy applications, which are most frequently monolithic, usually have two main disadvantages: they are difficult and expensive to scale and very complex to update. These applications are difficult to update and scale due to their complex architecture. For example, adding new features would be rather costly due to a number of integration challenges. Also, if only one app component faces performance challenges, the entire application would have to be scaled up to enable smooth performance of that specific app component. This leads to enormous expenses for the company. On the other hand, when legacy applications are modernised to microservices architecture, components can be easily deployed and scaled independently. This is the biggest value of cloud app modernisation. 

What key technologies are used for cloud application modernisation?

Cloud application modernisation can be facilitated with a number of latest technologies. To determine which technology is best for their business, companies need to do a detailed assessment of their application and determine their business needs and goals. 

Kubernetes and Containers 

Containers and Kubernetes have emerged as critical enablers of application modernisation strategies. Containerisation enables applications to be packaged consistently and easily, allowing them to run efficiently across cloud, desktop, and on-premises environments. 

What does a cloud application modernisation strategy involve?

Before you start your cloud application modernisation journey, you need to determine the current state of your cloud application. While technologies play a key role here, clearly defining your business goals is imperative. Once you have a clear overview of what you want to achieve, you are ready to start developing a robust cloud app modernization strategy. We bring you critical components each cloud application modernisation strategy should include:

  • Evaluate your legacy systems, including agility, risk, complexity level, business value, and cost, to see whether your current system is fit for modernisation 
  • Identify your business challenges, including limitations and employee personas caused by legacy apps. 
  • Determine which of the 7 Rs can be implemented in your cloud application modernisation journey 
  • Future-proof your cloud application modernisation by evaluating how many years it will pass before your modernised cloud app becomes obsolete 
  • Practice continuous cloud app improvement and redevelopment to make sure you retain the app’s compatibility while minimising business disruption 

When modernizing legacy systems, organizations should be mindful of the 7 Rs, determine the appropriate R based on specific use cases, and select an effective approach for moving applications efficiently. Common migration strategies include rehosting, re-platforming, relocating, and retiring. The 7 Rs of cloud app modernization are listed below, and we will explore each approach in detail.

  1. Replace — With this approach, a complete replacement of the application will be necessary. No amount of application modernization effort will overcome technical limitations such as obsolete code languages or APIs. 
  2. Rehost—When enterprises rehost an application, they move it to a different host platform without changing the app itself. Since digital transformation strategies require fast cloud migration, this is a good option for retaining service uptime with minimal disruption.
  3. Replatform — Replatforming is similar to relocating, involving moving legacy applications to the cloud. However, re-platforming also includes making certain modifications to the application before the move to leverage cloud capabilities better.
  4. Refactor — Restructuring the existing code while keeping the front end (user interface) unchanged can enhance application performance and functionality.
  5. Rebuild—Some applications prioritise enhancing functionality and reducing technical debt, which is why this process falls under the category of ‘rebuilding’ the application.
  6. Rearchitect — To rearchitect an application is to redesign an application from the ground up. This is commonly seen in monolithic application packages, where enterprises may want to leverage microservice architecture.
  7. Repurchase — This is perhaps the easiest way to modernize an application. Rather than refactoring, rebuilding, or rehosting, enterprises repurchase new software. This software is not repurchased from the same vendor, but from an alternative vendor that meets business requirements.
What is cloud application modernisation, and why do you need it?

What are the benefits of cloud application modernisation?

The ultimate goal of cloud application modernisation is to minimise operational inefficiencies and simplify business operations. Here are some of the most key benefits of the cloud application modernisation process:

  • The cloud app modernisation allows a pay-as-you-go pricing model and a much more efficient inftrustructure, which leads to huge long-term savings 
  • Enhanced performance of the app allows it to do more with limited resources
  • Transforming legacy apps to modern infrastructure allows for automated processes and data-driven analytics to eliminate administrative complexity
  • Highly performant apps provide superior user experience for both internal and external users

Start your cloud application modernisation with Deployflow 

Cloud adoption can help companies enhance operational efficiency and performance and minimise their expenses. However, without modernising their cloud apps, companies risk wasting resources and losing their competitive advantage. 

Deployflow has deep knowledge and extensive experience in cloud transformation, migration, and app modernisation. We can help you map your cloud app modernisation strategy and begin modernising at your own pace. We enable companies to accelerate application development, improve customer and employee experiences, and increase application security and reliability. Reach out to our team of experts to learn how we can help you modernise for more cloud value. 

Explore how we can help you scale with Deployflow Cloud Consulting services.

Learn how we can help you easily migrate to the cloud with Deployflow Cloud Migration services.  


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maya.budinski

Published on June 4, 2024