In addition to end users, every system needs to integrate with other IT systems. Those systems may be a part of different departments, clients, partners, or suppliers. The various systems need to exchange data in a standard format that evolves over time. Almost every few years, files and data format standards get changed to increase data exchange efficiency, and most systems require changes to adopt these. Hard-to-change legacy systems that stick to using an old format could result in system incompatibility and a system that your supplier and partner may not want to use. The inability to accommodate standard needs adds greater risk to businesses due to complex workarounds and lost productivity.
Adding a workaround for simple business needs may make a system more complex. Modern systems are built on a service-oriented architecture, which makes it easier to accommodate any new requirement by adding a new service independently. Old systems are often built...