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Guide for Successful Software Modernization
Devansh Bansal
Devansh Bansal Updated on May 21, 2024  |  4 Min Read

Organizations were already using technology enablers to address a slew of challenges posed by new customer demands, disruptive operating models, and inefficiencies. However, with business dynamics changing rapidly, it becomes critical for enterprises to take on legacy software modernization to respond to emerging requirements with agility whilst improving their efficiency and competitiveness. In simple words, legacy software modernization emerged as a digital mandate for organizations both large and small alike that have embarked on their digital transformation journey to drive innovation and achieve the intended results.

Businesses using outdated software can not only put both customer and enterprise data at stake but also increase customer churn rate and technical debt. Furthermore, 9 out of 10 decision-makers in the IT industry claim that legacy systems prevent them from leveraging the potential of digital technologies to become more efficient and drive business growth. Fortunately, enterprises can overcome all the challenges associated with legacy systems with modernization. Modernizing legacy software can be a complex, labor-intensive, and time-consuming undertaking endeavor, but it’s worth considering, provided the right software modernization strategy is followed. Read on to find out what a successful software modernization strategy entails and how enterprises can phase out legacy systems eventually.

Modernize Legacy Software

Five Simple Steps to Modernize Legacy Software Successfully

Legacy software is critical to the functioning of business processes but it also limits the enterprise’s ability to facilitate a digital-first user experience. Besides this, legacy software lacks the modern integration capabilities that the business world demands. Thus, it becomes crucial to consider modernization to improve the underlying functionality and performance of legacy software. Listed below are the steps that need to be followed religiously to ensure successful software modernization.

Five Steps to Modernize Legacy Software

Step 1: Architecture Audit

The high-level audit of software’s architecture, functionality, and mission-critical components can be a great starting point. This helps in identifying bottlenecks that could impair software performance, scalability, security, usability, and future growth. When auditing the software architecture, don’t forget to consider soaring technical debt and high software maintenance costs that could derail entire modernization efforts. Listed below are some factors accountable for rising technical debt:

  • Ageing source code
  • Outdated technology
  • Outgrown software architecture
  • Traditional development practices

By auditing the architecture of legacy software, one can easily determine what needs to be replaced and what can be reused. Always remember that reusability can be an effective way to cut down on software modernization costs. If there are some components that can be reused, it’s considered wise to reuse them when taking on legacy software modernization.

The Growing Threat of Technical Debt

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Step 2: Choose the Right Approach

When it comes to legacy software modernization, there are several different approaches available that are aimed at deriving value from legacy systems. Listed below are some popular approaches that enterprises can consider:

Encapsulate – It is a low-risk modernization approach wherein experts break the monolithic architecture, encapsulate the application’s data and functions, and make them available by rebuilding those components into microservices through a new API.

Rehosting (Lift and Shift) – In this modernization approach experts deploy application components to the Cloud or other physical or virtual environments without making any changes to the code, features, and functions. The lift and shift approach is fast, easy to implement, and ideal for businesses that are growing at a rapid pace.

Replatforming – This modernization approach allows enterprises to migrate the application to a new platform by making minimal changes but not to the code structure, functions, and features.

Refactoring – Refactoring involves restructuring and optimizing existing code to reduce technical debt and improve component features without making major changes to the code functionality.

Re-architecting – In this approach, the application is moved to a new architecture by modifying the code significantly. Re-architecting allows the application to leverage all the modern programming and microservices. This, in turn, improves application agility and resilience and reduces the total cost of ownership.

Rebuilding – Also known as redesign, rebuilding is rewriting the application components from scratch while keeping the scope or specifications unchanged. This is the most expensive software modernization approach since it involves a complete rebuild of the application components.

Replacing – It involves eliminating legacy components and replacing them with a completely new application that meets modern business requirements.

Step 3: Create a Strategic Roadmap

Without a technology roadmap in place, the software modernization efforts of businesses are likely to falter. Therefore, it is strongly recommended to create a strategic roadmap by defining business goals and objectives and breaking them down into smaller milestones while maintaining accountability and visibility across the entire modernization process. Besides this, it is also important to consider potential roadblocks that come along the way during software modernization so as to plan for those beforehand.

Step 4: Choose a Reliable Partner

Legacy software modernization requires an expert who can break monolithic architectures into microservices to improve the application’s scalability, functionality, and performance. For the in-house team, it’s highly unlikely to modify the application components of a monolithic architecture. This is where the need for a software modernization company comes in. Partnering with a professional having proven capabilities in software modernization can help businesses accomplish a frictionless transition.

Step 5: Quality Assurance

Once the software modernization begins, it’s strongly recommended to perform testing iteratively under varying loads and different usage scenarios to determine the application’s stability, resource consumption, work performance, and other quality facets. By doing so, it becomes easy to identify the system bottlenecks and determine that codes are working as intended.

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Summing Up

Modernizing legacy software requires strong technical expertise and a lot of time and effort, but it eventually pays off. Having said that, businesses can modernize legacy software faster with the right talent on their side. At Damco Solutions, we take care of every aspect of legacy software modernization right from assessing the current status of your software to devising a roadmap that improves application performance and adapts to changing user demands.

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