In my organization, we've taken automation to the extreme, and we automate every test we believe will yield a good ROI. Usually, this means we run automation tests on all delivered features at both sanity and end-to-end levels. This way, we achieve 90 percent coverage while also maintaining and growing our test automation suite at all stages of the application lifecycle.
This article uses the term “tester” to refer to the person involved in testing software with automation tools. It is not meant to distinguish by job title or technical proficiency. Jim Hazen describes himself as a hybrid, or “technical tester,” because he can write test scripts and develop what he refers to as “testware.” The trend is to hire for multiple skillsets, but that does not mean the non-technical stakeholders involved in software development don’t benefit from automation testing.