Mature systems in any enterprise require an approach different from newer implementations to software support—one that focuses on customization, interoperability, and performance support. Yet despite this fact, most vendors continue to offer the same one-size-fits-all models of support.
system maintenance support
The fact that the system is old means that it has relatively few bugs, that the code is stable, and that the user company is not altering how it is using the product very much. Although these executives saw the value of bug fixes, the low number of bugs in their systems had made this part of the maintenance service seem more like an insurance policy benefit. What this means is that the older the code is, the lower the value of maintenance. However, the older the code, the higher the customer''s risk is