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.
annual maintenance costs
maintenance upgrades included with annual support, and then enhance and package these upgrades as separate, newly licensed products (or modules). Based on this discussion, it is evident that the value of new releases is dependent on the particular situation of each company. IT infrastructure and compliance updates , a category of bug fixes or enhancements, covers the issue of matching changes in the underlying IT infrastructure (that is, supported databases, operating systems, application servers, etc.).