What is Application Modernization? Why do we need to do it? | Sela.
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What is Application Modernization? Why do we need to do it?

Modernization is the process of introducing or adopting new systems or technologies to replace older ones in the same field. It is also the process of moving/migrating an application from one environment to another.

Yogesh Hukame, Cloud Architect and Delivery | Cloud Managed Services & Operations | DevOps, Sela India

application modernization

Modernization is the process of introducing or adopting new systems or technologies to replace older ones in the same field. It is also the process of moving/migrating an application from one environment to another. Application Modernization is also to take existing legacy applications and re-architect them using modern technology platforms, tools, processes, etc.

Application modernization helps the business in retaining a competitive advantage and stay relevant in the market

When do we need to think about Application modernization 

Application modernization is required when your application has become obsolete, slow, and costly to maintain, among other reasons that we need to consider, like poorly written code, a lack of security, infrastructure issues, a poor user experience, no vendor support for outdated software, compatibility issues, maintainability, and cost.

Considerations for Modernizing Your Applications 

Before even starting to modernize your applications, you need to identify what business goals you want to achieve by doing so.

Work out how dependent the application is: is the application a legacy system that no longer has vendor support? Does the current infrastructure need to scale? Can the application be modified or easily migrated? Can the interface and user experience be updated? These are all questions you will need to consider before beginning app modernization

The Path to Application Modernization 

Beginning the journey of application modernization can be a complex process that necessitates careful planning and execution. Here are some steps you can take to get started with modernization:

Assess the current state of your application 

The first step in the modernization journey is to assess the current state of your application. Identify the technologies, tools, and languages used in your application, and evaluate their compatibility with modern systems.

Set goals and priorities 

Determine what you want to achieve through modernization. Identify the most critical features and functionality that need to be preserved and the areas that require the most attention.

Determine the modernization approach 

Decide on the modernization approach that suits your application best. Some common modernization approaches include re-platforming, refactoring, re-architecting, and rebuilding.

Create a roadmap

Develop a roadmap that outlines the steps required to achieve your modernization goals. Identify the milestones, timelines, and budgets required for each step.

Identify the required resources 

Determine the resources required for the modernization journey, including personnel, budget, and technology.

Prioritize security 

Ensure that security is a top priority throughout the modernization process. Identify potential security risks and implement appropriate measures to mitigate them.

Monitor progress 

Regularly monitor the progress of the modernization journey and adjust the roadmap and resources as required.

By following these steps, you can start your application modernization journey and transform your legacy application into a more modern, scalable, and secure solution. It's important to note that modernization is an ongoing process, and it requires a continuous effort to keep up with the latest technology trends and security standards.

Risks and challenges associated with application modernization 

Application modernization can be a challenging and complex process that involves a wide range of risks and challenges. Some of the common risks and challenges include:

Security risks

Modernization can introduce new security risks if not done correctly. Legacy applications may have security vulnerabilities that need to be addressed during the modernization process.

Compatibility issues

Modernization can introduce compatibility issues between different systems and components, particularly when integrating with third-party tools or platforms.

Cost overruns

Modernization can be expensive, and costs can quickly spiral out of control if not managed properly.

Downtime and disruptions

Modernization can cause downtime and disruptions to operations, particularly when migrating from one platform to another.

Skill and resource gaps

Modernization may require new skills and resources that may not be readily available in the organization.

User acceptance

Modernization can be disruptive to end-users, particularly when changes to the user interface or functionality are introduced.

To mitigate these risks and challenges, it's essential to have a well-defined modernization strategy and a detailed roadmap that outlines the steps required to achieve your modernization goals.

It's also important to involve stakeholders, including end-users, in the modernization process to ensure their buy-in and acceptance. Additionally, it's critical to prioritize security throughout the modernization process and ensure that all components and systems are compatible.

Finally, regular monitoring and testing can help identify and address any issues or challenges during the modernization process.

I was involved in a few application modernization activities, including converting a monolithic application to a microservices-based application. We assisted the app team in deploying these microservices on containers via AWS ECS. Containers are lightweight and highly scalable, encapsulating all application dependencies and configuration files.

Collaboration with various teams, such as the application development team, managed services, DevOps, and testing team, is critical for project success.

Summary 

To summaries, organizations must keep up with the latest trends and technologies. In today's highly digital world, where speed and agility are critical, applications should run on modern codebases, with the ability to integrate with other tools and services. It should be both high-performing and secure. This is not a one-time activity; organizations should evaluate their fleet of applications regularly and consider modernizing them if they add significant business value and competitive advantage.