Application Modernization

In today’s consistently developing technology, organizations continually search for ways to remain competitive and offer unparalleled experiences. Application modernization has arisen as a key technique to accomplish these objectives. It includes modernizing legacy systems and applications to address business issues, incorporate the latest technologies, and deliver user experience. However, modernizing applications can be complicated and requires expert assistance who can follow the best practices and make the entire process successful. 

The blog below will discuss the seven app modernization best practices.

Key App Modernization Best Practices

1. Assess Your Current System

Before leveraging application modernization services for your organization, it’s crucial to understand the system’s current state clearly. This includes identifying the existing application portfolio, understanding the architecture, and assessing the technology stack. An in-depth analysis of your applications will help you determine which ones are candidates for modernization, prioritize them, and set realistic goals for the process.

Conduct a comprehensive assessment of:

– Application functionality and features

– Performance and scalability

– Security vulnerabilities

– Integration points with other systems

– Technical debt and maintenance costs

A detailed comprehension of your existing system will help you make informed decisions about which applications to modernize, what innovations to take on, and how to allocate resources.

2. Set Application Modernization Objectives

Once you’ve evaluated your current state, the next important step is to define clear targets and objectives for your application modernization drive. What are you attempting to accomplish with the modernization exertion? Is it safe to say that you intend to develop further client experience, increment productivity, decrease working expenses, or the entirety of the abovementioned? Defining clear objectives will assist with directing your modernization technique and measuring the progress of your efforts.

Consider the following when defining objectives:

– Business outcomes: Align modernization goals with your organization’s strategic objectives. How will modernization contribute to revenue growth, customer satisfaction, or competitive advantage?

– Technical objectives: Specify technical goals such as improving application performance, scalability, and security.

– KPIs and success metrics: Establish key performance indicators (KPIs) and metrics to track progress and measure the impact of modernization.

By defining clear objectives and goals, you provide your team with a roadmap for the modernization project, ensuring everyone is on the same page.

3. Choose the Right Modernization Approach

Application modernization can take various forms, and your chosen approach should align with your objectives and constraints. Common modernization approaches include:

– Rehosting (Lift and Shift): This involves moving existing applications to a cloud infrastructure without making significant code changes. It’s a quick way to gain scalability and cost benefits.

– Replatforming: In this approach, you make minimal code changes to modernize the application, typically by updating the underlying infrastructure or middleware.

– Refactoring (Rearchitecture): Refactoring involves rewriting or restructuring parts of the application’s code to take advantage of cloud-native features, microservices, or modern development frameworks.

– Rearchitecting: This is a more radical approach where you rebuild the application from the ground up using modern architectures like microservices, containers, and serverless computing.

The choice of approach depends on factors such as the age and complexity of the application, budget, timeline, and the desired level of transformation. Selecting the right approach is crucial for achieving your modernization goals efficiently.

4. Prioritize Security and Compliance

Security and compliance are non-debatable elements of app modernization. As the development team updates and modernizes your applications, focusing on security at each process step is fundamental. Begin by distinguishing potential security weaknesses in your current applications and tending to them before modernization.

The development team offering application modernization services will implement the following security best practices:

– Implement robust authentication and authorization mechanisms.

– Encrypt sensitive data both in transit and at rest.

– Regularly update and patch all components, libraries, and dependencies.

– Conduct security testing and code reviews throughout the modernization process.

5. Implement DevOps Practices

DevOps practices and automation is one of the pivotal legacy system modernization trends. DevOps promotes collaboration between development and operations teams, streamlines the deployment process, and fosters a culture of continuous improvement.

Here are some ways to incorporate DevOps and automation into your modernization efforts:

– Adopt infrastructure as code to manage and provision infrastructure efficiently.

– Implement continuous integration (CI) and continuous deployment (CD) pipelines for faster and more reliable releases.

– Use monitoring and observability tools to gain insights into application performance and troubleshoot real-time issues.

– Automate testing, including unit testing, integration testing, and security testing, to ensure the quality of modernized applications.

6. Involve Stakeholders and Build a Skilled Team

Implementing application modernization services requires a collaborative effort amongst teams involving various stakeholders, including business leaders, developers, IT operations, and end-users. Engage stakeholders from the outset to gather input, define requirements, and set expectations.

Additionally, assemble a skilled and cross-functional team capable of handling the complexities of modernization. This team may include:

– Developers with expertise in modern technologies and frameworks.

– Cloud architects and engineers for infrastructure design and management.

– Security experts to ensure that modernized applications are secure.

– Project managers to coordinate activities, set timelines, and manage resources.

– Quality assurance professionals to oversee testing and validation.

Training and upskilling your team in modern technologies and best practices is also essential to ensure they have the necessary skills to execute the modernization project effectively.

7. Plan for Continuous Improvement

Application modernization is not a one-time effort but an ongoing process. As technology continues to evolve, so should your applications. Plan for continuous improvement by adopting agile methodologies and iterative development practices.

Here are some critical aspects of planning for continuous improvement:

– Review and refine your modernization strategy based on changing business needs and technology trends.

– Collect feedback from end-users to identify areas for improvement and new feature requests.

– Monitor application performance and usage to make data-driven decisions about further enhancements.

– Embrace a culture of experimentation and innovation, encouraging teams to explore new technologies and approaches.


Application modernization is a strategic imperative for organizations looking to thrive in today’s digital age. By following these best practices, such as analyzing your legacy system, implementing DevOps and security, and building a skilled team, you can successfully incorporate the modernization journey. Remember that modernization is not just about updating technology and infrastructure; it’s about delivering better user experiences, improving efficiency, and staying adaptable in this rapidly changing digital world.