1. A series of operations that can be performed periodically to keep a computer in optimum shape. Optimization is done by running a maintenance check, scanning for viruses, and de fragmenting the hard disk. Norton Utilities is one program used for optimizing.
2. Optimization of Web pages and images is performed by subjecting them to image and file compression techniques. File compression decreases load time to improve performance.
OPTIMIZATION is the process of improving website performance to its maximum state. Terminology used for maximizing would also apply. Each search engine has a unique way to rank webpages. It is impossible "to be all things, to all search engines" on a given webpage. Having each webpage on your website dedicated to a single topic, with 1 or 2 keyphrases featured, will generally achieve "the best ranking" results on most SERP(s) for your website's topic information.