In This Article

Legacy Systems: Background & risks

Despite the fact that we are living in the Digital Transformation era, several companies still find themselves using legacy applications. There are several reasons companies should consider updating, migrating, and modernising their existing applications, and most of these can have significant impacts on sustainability, maintainability, security, and usability.

In their article “The Road to Agile Legacy Modernisation”, Accenture highlights that modernising legacy systems enables organisations to adopt agile practices, leverage cloud services, and integrate emerging technologies like AI, ML, and IoT. This in turn fosters business agility, innovation, and the ability to quickly adapt to changing market needs.

Legacy systems also have limitations integrating with newer technologies and third- party applications. Updating systems ensures compatibility, seamless integration, and interoperability with modern platforms and APIs, facilitating collaboration and data exchange.
However, arguably the biggest threat of continuing to use an unsupported, non- cloud-based system is that of security. In their article “Managing Technical Debt in Legacy Systems”, Deloitte state that outdated applications often lack up-to-date security features and may be more vulnerable to cyber threats. Updating to modern systems with robust security measures can help safeguard sensitive data and mitigate security risks.

Why should companies update their legacy systems?

Blog Article: Who Supports Your Legacy Systems?

Enhanced Performance and Efficiency

Legacy systems often suffer from outdated technology, inefficient processes, and performance bottlenecks. Updating to modern systems can leverage advancements in hardware, software, and algorithms, resulting in improved speed, scalability, and overall system efficiency.

Improved Security

Outdated systems may have vulnerabilities and lack robust security measures, making them susceptible to cyberattacks and data breaches. Upgrading to newer systems with up-to-date security features and protocols can help safeguard sensitive information and protect against evolving threats.

Compatibility and Integration

Current applicationsmay struggle to integrate with modern technologies, applications, and APIs, limiting the company's ability to collaborate with partners, leverage cloud services, or adopt emerging technologies. Updating the systems ensures compatibility with newer platforms, enabling better interoperability and system integration.

Enhanced User Experience

Outdated systems often have outdated user interfaces and limited user-friendly features. Upgrading to modern systems can provide a more intuitive and engaging user experience.

Support and Maintenance

With time, the availability of skilled resources and technical support for legacy systems may decline. Upgrading to newer systems ensures ongoing vendor support, access to a broader talent pool, and compatibility with the latest development tools and frameworks.

Business Agility and Innovation

Legacy systems may hinder business agility by restricting the company's ability to respond quickly to market changes and implement new strategies. Upgrading allows organisations to adopt agile methodologies, leverage cloud computing, enable mobile capabilities, and embrace emerging technologies like artificial intelligence (AI) and machine learning (ML).

How We Modernise and Migrate a Legacy System

Intergy - How we modernise and migrate a legacy system

When approaching the task of rewriting legacy systems in modern technology, companies should follow a systematic and strategic approach. At Intergy, we can complete all the steps required to modernise, migrate, and support your new system. However, to break down the process, here are the important steps that we take when auditing, rebuilding, migrating, and modernising your legacy application:

The final verdict

Given the risks of maintaining a legacy system, and the benefits of modernisation and migration, it’s clear that businesses that find themselves using outdated applications should seriously consider upgrading to a modern, cloud-based solution.
However, it’s important to note that the decision to update legacy systems should be carefully evaluated, considering factors such as the system’s criticality, potential business disruptions, migration complexities, and available resources.
Conducting a thorough cost-benefit analysis and considering the specific needs and goals of the organisation will help determine the most appropriate course of action.

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