Identify the type of software maintenance for the following scenario. Explain your answer. "A maintainer was assigned to install three upgraded COTS components, the first of which implements a hardware upgrade. Each COTS component was received from a different vender, but all are used in one system. In attempting to install a test version of the system, the maintainer found that one of the upgrades was incompatible with the other two, and that those other two would not work with the existing in-use version of the third. After considerable diagnostic test runs and obtaining an "its your problem" response from the vendor of the third component, the maintainer got approval to write a wrapper for one of the upgraded COTS components in order to fit with the continued use of the existing version of the third component. After successful regression testing, the maintainer had the configuration management data updated and the new wrapper recorded. The change, since it would be nearly transparent to the customer, was put into production at the time of the next scheduled release of a version of the systems, and the document was updated