![]() ![]() Shifting left is a critical part of the DevOps approach, which calls for testing software early and often. This helps improve software quality, particularly in terms of performance and usability. Shift-right testing enables teams to test a fully functioning application and observe user behavior. Ultimately, shifting left can reduce development costs, speed time to market, and cut down on errors.Ĭonversely, shift-right testing refers to post-production testing on the right of the development process. ![]() This shift enables development teams to test code earlier, receive and act on feedback quicker, review results, and make changes more easily. In response, development teams have begun to shift security testing as far left along this line as possible, to detect and remediate flaws, vulnerabilities, and threats as soon and as quickly as possible. And if problems remain, this entire procedure has to start again. The problem with that is that if any issues are identified, the process has to revert to the beginning to revise the code base, the components, and the dependencies that are causing concern before testing again. Traditionally, security testing waited until the bulk of the development was done, towards the right of the process, as indicated above. Imagine a development life cycle as a line or continuum, with the start of the process on the left, the completion of the process - the release of the software or application - on the right, and all the various stages in between, as in the diagram below. Shifting left means testing as early as possible - or moving the process to the left in the DevOps pipeline. Early detection accelerates the process of taking corrective steps, thereby reducing the time and cost of fixing these issues. New strategies of shifting tests earlier in the software development lifecycle (SDLC) have been introduced to help identify issues as early as possible. Nowadays, the software development industry has learned that fixing bugs detected earlier in the process is easier and cheaper. Then the cycle would be repeated as necessary. Developers would work on a base level and when it was done, it was passed on to the QA team, who would test that base level and give the results back to the development team to fix. Traditionally, typical development and quality assurance cycles were organized around ‘base levels’. Learn more in our Complete Guide to Open Source Security What does shift left mean? ![]()
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