Difference between search positioning and optimization?

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While looking for a specific product or a service, the exact keywords, key phrases or search terms that will be used by your prospective customers to key in the search box is search engine positioning. You will need to know what your users are searching and who all your competitors are to get targeted traffic with search engines. This is really vital if you desire to have your website rank well in engines though it might seem trivial to you now. You will be able to strike a balance between keyword targeting, popularity and direct competition with search query determination.
Alternatively, by placing select keywords and key phrases into a given website with appropriate placement techniques and using the accurate words carefully is the process of search engine optimization. The whole process of search engine optimization is the less complex part in the entire system.