How to test legacy systems?

Legacy systems, akin to a cherished vintage car, are outdated yet essential technologies that continue to serve critical business operations despite their limitations in modern contexts. They often present challenges such as high maintenance costs, integration difficulties with new systems, limited scalability, and increased security vulnerabilities, as illustrated by incidents like the WannaCry ransomware attack. Replacing these systems is fraught with obstacles, including data migration risks, financial costs, and resistance to change. Effective testing and modernization strategies are crucial, requiring careful planning, resource allocation, and the adoption of modern principles like Agile and CI/CD to ensure system reliability without disrupting business operations. Tools like testRigor can aid in automating testing processes, simplifying the complexities associated with legacy systems, and helping organizations balance the need for maintaining current systems while preparing for future technological advancements.