Before revision: ỼIn telecommunication, degradation, which may be categorized as either "graceful" or "catastrophic", has the following meanings: The deterioration in quality, level, or standard of performance of a functional unit.
After revision: In telecommunication, degradation, which may be categorized as either "graceful" or "catastrophic", has the following meanings: The deterioration in quality, level, or standard of performance of a functional unit.