Every product should go through quality assurance or testing, before going to market, to make sure that the product is developed as per expectations. This involves various testing phases such as build testing, smoke/sanity testing, feature testing, regression testing and sometimes products need to go through performance testing as well. All these phases help make the product stable. All bugs related to coding, logic, environment, and configuration need to be eliminated so that product can be launched with strong sales and tech support. 

Read more here http://blog.calsoftinc.com/2017/03/importance-of-automation-in-qa-ecosystem-for-rapid-product-release-cycle.html

Original Article at Software Testing Club