Hello,
Google makes changes to their search algorithm regularly to improve the way the search engine fetches results, and these changes in the search algorithm directly affects SEO. This does not mean that SEO is dead, but that it is evolving to cope with the changes in Google algorithm. E-commerce marketers may need to jump through all of the changes in SEO to be shown on top of the search engine result pages. The Hummingbird system focuses on user intent versus individual search terms, which makes your searches more precise. For example, a search for “pizza hut calories per slice” used to list an answer from food and diet websites, but not one from Pizza Hut. Now, it lists an answer directly from Pizza Hut itself. Hummingbird focuses on the meaning behind the words and allows Google to go beyond just finding pages with matching words.