Many established companies run daily operations on software a small team wrote over a decade ago. The software still works, but only one or two people maintain it. This article describes how Plexteq approaches such a system, using a recent engagement with a European production facility as an example: a 75,000-line Delphi XE2 application with a companion PHP application and a shared MySQL database, developed and maintained by a single engineer. We recommended not rewriting it

Most organizations running critical operations on legacy infrastructure face the same fundamental tension: the systems are stable, deeply embedded, and expensive to replace - but they weren't built for the integration demands of modern AI , cloud services, or real-time data pipelines. Replacing them outright carries substantial risk and cost. But leaving them untouched means falling further behind on automation, intelligence, and operational efficiency. The practical path for

Table of Contents Just because a system is old doesn't mean it needs modernization. If it's stable and rarely changes, it might still be a good fit. Modernization is really needed when the legacy platform starts to hold back business operations. If maintenance costs are rising and it takes longer to deliver new features, modernization may be needed. Engineers may avoid working on the system if the code is hard to understand, testing isn't thorough, and every release feels ris

The insurance industry stands at a pivotal crossroads. Legacy core systems - built for a different era of business - are increasingly unable to meet the speed, flexibility, and digital expectations that today's market demands. From billing and underwriting to claims processing and customer-facing services, outdated infrastructure creates technical debt, limits innovation, and puts insurers at a growing competitive disadvantage. Core systems modernization is no longer a long-t

Applications are the lifeblood of modern businesses. Yet many organizations find themselves burdened by existing legacy applications that can stifle growth and innovation. Application modernization is the process of revitalizing outdated applications to align with current business needs and take advantage of the latest technological advancements. This guide covers everything decision-makers and technical leaders need to know about application modernization - from core concept

In the first installment of this three-part series, we explore the essence of the Strangler Fig pattern, its mechanics, and why it's useful for modernizing legacy systems. Through a real-world case study on modernizing a monolithic production system, we show the pattern's practical application and benefits, highlighting its pros and cons in a tangible scenario. Part three will tackle the technical challenges of running legacy systems in AI workloads. Table of Contents Compani