Because most enterprises utilize hundreds, if not thousands of web applications, the cost to rewrite, upgrade, or replace every incompatible application is substantial. Rewriting web applications can only be considered if the original in-house or third-party custom application developers are available and the technology is still supported. Even then, the costs are often prohibitive. Engaging in web application upgrades isn’t always as simple as it may seem. It requires the arduous process of installing new software, customizing required workflows, reintegrating legacy data, testing all scenarios, and retraining users, which is costly, time consuming, and can expose the enterprise to application downtime and lost productivity. Replacing web applications is an expensive, complex, and exceedingly time-consuming process which should be driven by a business need, not a browser migration. If any component in a new application is delayed, it can have a large ripple effect capable of delaying an entire operating system or browser migration. In the end, modifying applications typically only achieves functional parity, adding little business value at great cost.
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