Shift left is the practice of improving quality at an earlier stage (day to day basis) by identifying the defects and fixing them whenever they arise. It helps in running the application and system 25% faster, it also improves customer satisfaction with lower labor cost and higher production. Beginning quality assurance activities at earlier stage ensures improved estimation and planning, a proper test data and technical environment, test case properly design, test automation assets in place. It also has efficiency advantages. Business benefits by shift left are: lower cost, quicker deployment and delivery for the businesses, higher business process quality and glitches free execution, and the most important satisfies business partners. Teams that use it, step up their project planning and execution capabilities. To know more, read the article by Mark Summers at www.cio.com

link: http://www.cio.com/article/3050579/leadership-management/want-agile-devops-shift-left.html